A3 lockable black anodised aluminium poster case with a 45mm frame profile, complete with wall fixings for secure display.
Durable A3 poster case in black anodised aluminium, featuring a lockable design, 45mm frame profile, and wall fixings included.
a3-black-wall-mounted-poster-case-with-lockable-frame-weatherproof-protection-and-anti-glare-clarity
A3 Lockable Anodised Aluminium Black Poster Case with 45mm Frame Profile With Wall Fixings
Sleek lockable A3 poster case with a 45mm frame profile, crafted from black anodised aluminium and supplied with wall fixings.

Overview

Description

Specifications

Delivery & Returns

FAQs

Knowledge Hub

A3 Outdoor Lockable Poster Case in Black Anodised Aluminium

Right now, somewhere in your building, a legally required certificate is stuck to a wall with blu-tack. The premises licence is curling at the corners. The food hygiene rating is yellowing behind a strip of sellotape. The fire evacuation plan is half-hidden behind a coat hook. It looks neglected because it is neglected, and every customer, inspector and visitor who sees it draws the same conclusion about the business behind it. The SFLA3B solves that permanently. This is a lockable, weatherproof, shatter-resistant A3 poster case in satin black anodised aluminium that turns mandatory paperwork, compliance documents and essential signage into a curated part of your interior or exterior design. The key lock ensures your official notices cannot be tampered with. The weather seal keeps them pristine in unheated stairwells, outdoor car parks and loading bays. The satin black finish frames them with authority rather than apology.

A3 is the agile format. One high-impact A3 poster, or two standard A4 documents displayed side by side. Premises licence and food hygiene certificate together in one professional frame. Wall fixings included. Free UK mainland delivery.

Why This A3 Case Replaces Every Alternative

  • Tamper-proof key lock for mandatory security: When displaying legally required information, official tariffs or compliance documents, you cannot risk the public altering or removing them. The key lock ensures your notices stay exactly as you installed them. In unsupervised corridors, car parks, lift lobbies and public-access areas, that security is not optional. It is a compliance requirement.
  • Heavy-duty weather seal for outdoor reliability: An industrial-grade internal rubber gasket runs the full perimeter of the door, blocking driving rain, wind-blown debris and persistent dampness. Car park tariffs, outdoor directional signage, smoking area rules and loading bay instructions stay legible and dry through heavy British rain. Standard indoor frames let moisture in within weeks, causing paper to curl and rot in unheated environments.
  • Shatter-resistant UV-stabilised PET door for corridor armour: A3 cases are typically mounted in tight corridors, lift lobbies, stairwells and narrow passageways where they are constantly bumped by elbows, bags, trolleys and moving furniture. Glass breaks. Acrylic cracks and yellows. The high-impact PET glazing absorbs punishment without shattering, and the UV stabilisation keeps the view clear for years.
  • A3 format as the agile double-A4 footprint: At 297mm x 420mm, A3 is the perfect dual-purpose size. Display one high-impact A3 poster or neatly mount two standard A4 documents side by side. Premises licence and food hygiene certificate. Fire plan and emergency contacts. Wi-Fi code and building regulations. One frame, two documents, zero clutter.
  • Satin black anodised aluminium frame: Silver frames in lifts and corridors look industrial and bureaucratic. The satin black finish frames your information with authority, matching high-end corporate interiors, hospitality venues, boutique retail and contemporary residential lobbies. The black finish tells the viewer this information is important rather than just obligatory.
  • 45mm extruded aluminium profile: Heavy-duty construction for permanent wall mounting. The extruded aluminium resists corrosion, warping and degradation through years of indoor and outdoor exposure. A permanent architectural fixture, not a temporary notice holder.
  • Wall fixings included: Screws and wall plugs supplied for secure, permanent installation. Once mounted, the case stays. The construction resists tampering and forced removal.

Where This A3 Poster Case Earns Its Place

Hospitality and Retail (Licensing and Policies) The Compliance Vault. The professional way to display premises licences, food hygiene ratings, Challenge 25 policies and allergen notices at the entrance or behind the bar without undermining the venue's aesthetic. The satin black frame makes compliance look curated rather than cobbled together.
Corporate and Residential (Lifts and Lobbies) The Executive Notice. The right scale for mounting inside elevators, above mailboxes or in corridors to display building management notices, Wi-Fi codes, emergency procedures and fire safety plans securely and professionally.
Private Car Parks and Facilities Management The Tariff Protector. Parking charges, terms and conditions, automated gate instructions and out-of-hours emergency contacts displayed securely outdoors where unsupervised signage is constantly at risk of defacement and weather damage.
Boutique Cafes and Independent Restaurants The Niche Menu. The perfect format for separating the drinks and desserts list from the main menu, mounting it beside the ordering till or at the entrance. The black frame matches contemporary hospitality interiors without looking like a council noticeboard.
Schools, NHS and Public Sector Safeguarding policies, visitor information, health campaigns and directional signage in corridors and reception areas where notices must be protected from tampering and kept pristine in high-traffic environments.

Need a Larger Case or a Silver Finish?

The same lockable case is available in A2 and A1 in satin black for larger poster formats. A silver A3 version is also available for environments where a lighter frame is preferred.

Call us on 01279460460 or get in touch for volume orders or installation advice.

The Displaysense A3 Outdoor Lockable Poster Case (SFLA3B) is a satin black anodised aluminium weatherproof poster case with key-lock security, heavy-duty internal rubber weather seal, shatter-resistant anti-glare UV-stabilised PET door, 45mm extruded aluminium frame profile and wall fixings included. A3 format (297mm x 420mm). Accepts one A3 poster or two A4 documents side by side. Designed for permanent indoor and outdoor wall mounting. Tamper-proof, weatherproof and impact-resistant. Suitable for hospitality licensing, retail compliance, corporate lobbies, residential buildings, car parks, cafes, schools, NHS and public sector. Also available in A2 and A1 in satin black, and A3 in silver. Displaysense, UK display product specialists since 1978.

Every building has dead zones. The narrow pillar between two doorways. The stairwell wall nobody decorates. The lift lobby where notices go to die. The corridor beside the loading bay. These are the spaces where essential information gets pinned up with tape, ignored until it curls, and eventually replaced with another piece of tape and another curling printout. The SFLA3B transforms those dead zones into secure, professional communication hubs. A3 is the format designed for tight spaces where a larger case would block the walkway and a smaller case would not command attention. The lockable door keeps the content protected. The weather seal keeps it flat in unheated, damp or draughty environments. The satin black frame makes it look like it belongs there.

The A3 format is the natural compliance size. It accepts one A3 document or two standard A4 sheets side by side. A premises licence beside a food hygiene certificate. A fire evacuation plan beside an emergency contacts sheet. A parking tariff beside the terms and conditions. Every business has documents that must be displayed. This case displays them in a way that looks professional, stays tamper-proof and survives the environment they are mounted in, whether that is a heated restaurant entrance, an unheated stairwell or an outdoor car park wall.

Competitors sell A3 frames as pure utilitarian hardware for fire escape routes and health and safety notices, using flimsy rounded silver profiles that look bureaucratic. The SFLA3B reframes the format. The satin black anodised aluminium elevates the case from a mandatory requirement into an architectural element that matches the interior design rather than undermining it. In a boutique cafe, a hotel corridor, a residential lobby or a corporate lift, the black finish projects authority. Silver says this notice is here because it has to be. Black says this notice is here because it matters.

The shatter-resistant PET door is critical at this format. A3 cases live in the tightest spaces in a building: beside fire doors, in narrow corridors, inside lift cars, above stairwell handrails. These are high-contact zones where elbows, bags, trolleys and moving furniture make constant contact with the case. Glass shatters. Acrylic cracks. The PET glazing absorbs the daily punishment and keeps the document behind it in clear, readable focus.

Why This Case Outperforms Acrylic Sign Holders and Standard Frames

  • A3 lockable poster case in satin black anodised aluminium with 45mm extruded frame for permanent indoor and outdoor wall mounting
  • Key-lock security ensuring compliance documents, official notices and tariffs cannot be tampered with or removed
  • Heavy-duty internal rubber weather seal blocking moisture in car parks, loading bays, stairwells and unheated corridors
  • Shatter-resistant anti-glare UV-stabilised PET door engineered for the high-contact environments where A3 cases are mounted
  • Accepts one A3 poster or two A4 documents displayed side by side in one professional frame
  • Satin black finish that frames information with authority rather than looking institutional
  • Wall fixings included for permanent, secure installation

Outfitting Multiple Locations or a Property Portfolio?

For multi-unit orders across hotels, restaurant groups, residential blocks or corporate estates, contact our UK team. We supply volume orders with consistent finish, matching hardware and coordinated delivery.

Call us on 01279460460 or get in touch and we will build the order.

The Displaysense SFLA3B is an A3 outdoor lockable poster case in satin black anodised aluminium with key-lock security, rubber weather seal, shatter-resistant PET door, 45mm extruded frame and wall fixings. Accepts A3 or two A4 documents. Indoor and outdoor. Also in A2, A1 black and A3 silver. Displaysense, UK display product specialists since 1978.

Full specifications for the SFLA3B A3 outdoor lockable poster case in satin black anodised aluminium. This is a permanent indoor and outdoor signage solution for compliance documents, essential notices and branded information in environments where protection, security and presentation all matter.

A3
297 x 420mm
45mm
Frame Profile
Key-Lock
Tamper-Proof
Weatherproof
Sealed
Shatter-Proof
PET Door
Specification Detail What This Means for You
Poster Size A3 (297mm x 420mm) The agile dual-purpose format. Accepts one A3 poster or two A4 documents displayed side by side. The ideal size for compliance documents, licensing, menus, tariffs and essential notices in spaces where larger cases would block walkways.
Frame Material Anodised aluminium, satin black Frames information with authority rather than apology. The black finish matches hospitality, corporate and contemporary residential interiors where silver would look institutional. Anodised for corrosion-free indoor and outdoor use.
Frame Profile 45mm extruded aluminium Heavy-duty construction for permanent wall mounting. Wider than standard poster frame profiles for structural rigidity and tamper resistance.
Security Key lock Tamper-proof access control for legally required documents, official tariffs and compliance notices. The lock ensures your information cannot be altered, defaced or removed by the public.
Weather Seal Heavy-duty internal rubber gasket Full-perimeter seal blocks moisture, wind and dampness. Keeps documents flat and legible in car parks, loading bays, stairwells, unheated corridors and outdoor environments.
Door Shatter-resistant anti-glare UV-stabilised PET High-impact glazing for the tight corridors, lift lobbies and stairwells where A3 cases are mounted. Absorbs impacts from elbows, bags and trolleys without cracking. Anti-glare for readability. UV-stabilised against yellowing.
Use Outdoor and indoor Engineered for permanent wall mounting in all UK conditions. Equally effective indoors in corridors, lobbies, lifts, stairwells and public-access areas.
Mounting Wall fixings included Screws and wall plugs supplied for secure, permanent installation on brick, block, plaster and concrete walls.
Also Available In A3 silver; A2 and A1 in satin black Silver A3 for lighter interiors. Larger formats for bigger poster sizes using the same construction, weather seal and security.

Free delivery on every order, no minimum spend

UK Mainland standard delivery included on everything we sell.

Standard

Free

Always included, no minimum order

Express

£9.95

Express options shown at checkout where available

Lead time

2 to 3 days

Working days, UK Mainland

Returns

28 days

Original condition and packaging

Good to know

  • Orders before 4pm typically ship the same day
  • Tracking email sent on dispatch
  • Ground-floor, accessible delivery point

Returns must be unused and in original packaging. Full delivery information  ·  Returns policy

Questions About the A3 Outdoor Lockable Poster Case in Black

Q: Can I display two A4 documents side by side in this case?

A: Yes. A3 (297mm x 420mm) is exactly double A4. Two standard A4 documents fit side by side within the case. Premises licence and food hygiene certificate. Fire plan and emergency contacts. One professional frame, two essential documents, zero clutter.

Q: Is this case weatherproof enough for outdoor use?

A: Yes. The heavy-duty internal rubber gasket creates a full-perimeter seal that blocks driving rain, wind-blown moisture and persistent dampness. Car park tariffs, outdoor directional signage and loading bay instructions stay dry and legible through everything the British climate delivers.

Q: Why use a lockable case for A3 documents instead of a simple frame or acrylic holder?

A: Acrylic holders snap, scratch and let in moisture. Standard frames offer no security against tampering. This extruded aluminium case with a key lock and weather seal protects your documents permanently. For legally required notices, compliance certificates and tariffs that must remain unaltered, security is not optional.

Q: Is A3 too small for advertising?

A: A3 is not designed for broad-reach advertising. It is designed for dead zones: narrow pillars, stairwells, lift lobbies, corridors beside fire doors and the tight spaces where larger cases would block walkways. In these locations, A3 transforms unused wall space into a secure, targeted communication point without obstructing foot traffic.

Q: Why choose satin black instead of silver?

A: Silver frames in corridors and lifts look industrial and bureaucratic. The satin black finish frames your information with authority, matching hospitality venues, corporate lobbies, boutique retail and contemporary residential interiors. Silver says this notice is here because it has to be. Black says it matters.

Q: Does requiring a key make poster changes inconvenient?

A: It adds seconds. That is the point. A3 is the standard format for legal and compliance documents where security is paramount. The key lock guarantees your official notices, pricing structures and certificates cannot be altered or removed by the public. The few seconds to unlock are the guarantee that your compliance stays intact.

Q: Will the PET door crack if it gets bumped in a tight corridor?

A: No. The shatter-resistant PET glazing is specifically chosen for the high-contact environments where A3 cases live: corridors, stairwells, lift lobbies and narrow passageways. It absorbs impacts from elbows, bags, trolleys and moving furniture without cracking or shattering. Glass and acrylic cannot make the same claim.

Q: Will documents curl in an unheated stairwell or loading bay?

A: No. The weather-sealed gasket blocks the moisture ingress that causes paper to curl, warp and rot in damp, unheated environments. Standard indoor frames and acrylic holders offer no protection against humidity. This case keeps documents flat and pristine regardless of temperature or dampness.

Q: Is this case suitable for displaying a premises licence?

A: Yes. The A3 format is the standard for premises licences, and the key lock ensures the document cannot be tampered with or removed. The satin black frame presents the licence as a professional part of the venue design rather than a curling printout stuck to the wall with tape.

Q: Can I mount this inside a lift?

A: Yes. The A3 format is the ideal scale for lift interiors. Building management notices, emergency procedures, Wi-Fi codes and floor directories all fit within the frame. The key lock prevents tampering by residents or visitors, and the shatter-resistant door handles the constant contact that lift-mounted signage endures.

Q: Is this more expensive than a simple acrylic sign holder?

A: Yes. An acrylic holder costs less upfront but offers no security, no weather protection and no impact resistance. It snaps, scratches, lets in moisture and needs replacing regularly. The SFLA3B is a permanent aluminium fixture that protects your documents for years. The frame pays for itself by eliminating the cycle of damage and replacement.

Q: Will the anodised aluminium corrode outdoors?

A: No. The anodising process creates a hard, corrosion-resistant surface that withstands years of outdoor exposure without rusting, peeling or degrading. The satin black finish is integrated into the anodised layer, not painted on, so it will not chip or flake.

Q: What other sizes are available?

A: A2 and A1 in the same satin black anodised aluminium with the same lock, weather seal and shatter-resistant PET door. A3 is also available in silver for environments where a lighter frame is preferred.

Q: How do I change the document once the case is wall-mounted?

A: Unlock the key lock, open the hinged door, swap the document, close the door and lock. Under a minute. The case stays wall-mounted. Only the content changes.

Guides for Professional Signage and Compliance Displays

A lockable poster case protects your documents. The businesses that get the most from their signage are the ones that think about placement, presentation and how each display fits into the broader branded environment. These guides cover the practical side.

Overview

A3 Outdoor Lockable Poster Case in Black Anodised Aluminium

Right now, somewhere in your building, a legally required certificate is stuck to a wall with blu-tack. The premises licence is curling at the corners. The food hygiene rating is yellowing behind a strip of sellotape. The fire evacuation plan is half-hidden behind a coat hook. It looks neglected because it is neglected, and every customer, inspector and visitor who sees it draws the same conclusion about the business behind it. The SFLA3B solves that permanently. This is a lockable, weatherproof, shatter-resistant A3 poster case in satin black anodised aluminium that turns mandatory paperwork, compliance documents and essential signage into a curated part of your interior or exterior design. The key lock ensures your official notices cannot be tampered with. The weather seal keeps them pristine in unheated stairwells, outdoor car parks and loading bays. The satin black finish frames them with authority rather than apology.

A3 is the agile format. One high-impact A3 poster, or two standard A4 documents displayed side by side. Premises licence and food hygiene certificate together in one professional frame. Wall fixings included. Free UK mainland delivery.

Why This A3 Case Replaces Every Alternative

  • Tamper-proof key lock for mandatory security: When displaying legally required information, official tariffs or compliance documents, you cannot risk the public altering or removing them. The key lock ensures your notices stay exactly as you installed them. In unsupervised corridors, car parks, lift lobbies and public-access areas, that security is not optional. It is a compliance requirement.
  • Heavy-duty weather seal for outdoor reliability: An industrial-grade internal rubber gasket runs the full perimeter of the door, blocking driving rain, wind-blown debris and persistent dampness. Car park tariffs, outdoor directional signage, smoking area rules and loading bay instructions stay legible and dry through heavy British rain. Standard indoor frames let moisture in within weeks, causing paper to curl and rot in unheated environments.
  • Shatter-resistant UV-stabilised PET door for corridor armour: A3 cases are typically mounted in tight corridors, lift lobbies, stairwells and narrow passageways where they are constantly bumped by elbows, bags, trolleys and moving furniture. Glass breaks. Acrylic cracks and yellows. The high-impact PET glazing absorbs punishment without shattering, and the UV stabilisation keeps the view clear for years.
  • A3 format as the agile double-A4 footprint: At 297mm x 420mm, A3 is the perfect dual-purpose size. Display one high-impact A3 poster or neatly mount two standard A4 documents side by side. Premises licence and food hygiene certificate. Fire plan and emergency contacts. Wi-Fi code and building regulations. One frame, two documents, zero clutter.
  • Satin black anodised aluminium frame: Silver frames in lifts and corridors look industrial and bureaucratic. The satin black finish frames your information with authority, matching high-end corporate interiors, hospitality venues, boutique retail and contemporary residential lobbies. The black finish tells the viewer this information is important rather than just obligatory.
  • 45mm extruded aluminium profile: Heavy-duty construction for permanent wall mounting. The extruded aluminium resists corrosion, warping and degradation through years of indoor and outdoor exposure. A permanent architectural fixture, not a temporary notice holder.
  • Wall fixings included: Screws and wall plugs supplied for secure, permanent installation. Once mounted, the case stays. The construction resists tampering and forced removal.

Where This A3 Poster Case Earns Its Place

Hospitality and Retail (Licensing and Policies) The Compliance Vault. The professional way to display premises licences, food hygiene ratings, Challenge 25 policies and allergen notices at the entrance or behind the bar without undermining the venue's aesthetic. The satin black frame makes compliance look curated rather than cobbled together.
Corporate and Residential (Lifts and Lobbies) The Executive Notice. The right scale for mounting inside elevators, above mailboxes or in corridors to display building management notices, Wi-Fi codes, emergency procedures and fire safety plans securely and professionally.
Private Car Parks and Facilities Management The Tariff Protector. Parking charges, terms and conditions, automated gate instructions and out-of-hours emergency contacts displayed securely outdoors where unsupervised signage is constantly at risk of defacement and weather damage.
Boutique Cafes and Independent Restaurants The Niche Menu. The perfect format for separating the drinks and desserts list from the main menu, mounting it beside the ordering till or at the entrance. The black frame matches contemporary hospitality interiors without looking like a council noticeboard.
Schools, NHS and Public Sector Safeguarding policies, visitor information, health campaigns and directional signage in corridors and reception areas where notices must be protected from tampering and kept pristine in high-traffic environments.

Need a Larger Case or a Silver Finish?

The same lockable case is available in A2 and A1 in satin black for larger poster formats. A silver A3 version is also available for environments where a lighter frame is preferred.

Call us on 01279460460 or get in touch for volume orders or installation advice.

The Displaysense A3 Outdoor Lockable Poster Case (SFLA3B) is a satin black anodised aluminium weatherproof poster case with key-lock security, heavy-duty internal rubber weather seal, shatter-resistant anti-glare UV-stabilised PET door, 45mm extruded aluminium frame profile and wall fixings included. A3 format (297mm x 420mm). Accepts one A3 poster or two A4 documents side by side. Designed for permanent indoor and outdoor wall mounting. Tamper-proof, weatherproof and impact-resistant. Suitable for hospitality licensing, retail compliance, corporate lobbies, residential buildings, car parks, cafes, schools, NHS and public sector. Also available in A2 and A1 in satin black, and A3 in silver. Displaysense, UK display product specialists since 1978.

Description

Every building has dead zones. The narrow pillar between two doorways. The stairwell wall nobody decorates. The lift lobby where notices go to die. The corridor beside the loading bay. These are the spaces where essential information gets pinned up with tape, ignored until it curls, and eventually replaced with another piece of tape and another curling printout. The SFLA3B transforms those dead zones into secure, professional communication hubs. A3 is the format designed for tight spaces where a larger case would block the walkway and a smaller case would not command attention. The lockable door keeps the content protected. The weather seal keeps it flat in unheated, damp or draughty environments. The satin black frame makes it look like it belongs there.

The A3 format is the natural compliance size. It accepts one A3 document or two standard A4 sheets side by side. A premises licence beside a food hygiene certificate. A fire evacuation plan beside an emergency contacts sheet. A parking tariff beside the terms and conditions. Every business has documents that must be displayed. This case displays them in a way that looks professional, stays tamper-proof and survives the environment they are mounted in, whether that is a heated restaurant entrance, an unheated stairwell or an outdoor car park wall.

Competitors sell A3 frames as pure utilitarian hardware for fire escape routes and health and safety notices, using flimsy rounded silver profiles that look bureaucratic. The SFLA3B reframes the format. The satin black anodised aluminium elevates the case from a mandatory requirement into an architectural element that matches the interior design rather than undermining it. In a boutique cafe, a hotel corridor, a residential lobby or a corporate lift, the black finish projects authority. Silver says this notice is here because it has to be. Black says this notice is here because it matters.

The shatter-resistant PET door is critical at this format. A3 cases live in the tightest spaces in a building: beside fire doors, in narrow corridors, inside lift cars, above stairwell handrails. These are high-contact zones where elbows, bags, trolleys and moving furniture make constant contact with the case. Glass shatters. Acrylic cracks. The PET glazing absorbs the daily punishment and keeps the document behind it in clear, readable focus.

Why This Case Outperforms Acrylic Sign Holders and Standard Frames

  • A3 lockable poster case in satin black anodised aluminium with 45mm extruded frame for permanent indoor and outdoor wall mounting
  • Key-lock security ensuring compliance documents, official notices and tariffs cannot be tampered with or removed
  • Heavy-duty internal rubber weather seal blocking moisture in car parks, loading bays, stairwells and unheated corridors
  • Shatter-resistant anti-glare UV-stabilised PET door engineered for the high-contact environments where A3 cases are mounted
  • Accepts one A3 poster or two A4 documents displayed side by side in one professional frame
  • Satin black finish that frames information with authority rather than looking institutional
  • Wall fixings included for permanent, secure installation

Outfitting Multiple Locations or a Property Portfolio?

For multi-unit orders across hotels, restaurant groups, residential blocks or corporate estates, contact our UK team. We supply volume orders with consistent finish, matching hardware and coordinated delivery.

Call us on 01279460460 or get in touch and we will build the order.

The Displaysense SFLA3B is an A3 outdoor lockable poster case in satin black anodised aluminium with key-lock security, rubber weather seal, shatter-resistant PET door, 45mm extruded frame and wall fixings. Accepts A3 or two A4 documents. Indoor and outdoor. Also in A2, A1 black and A3 silver. Displaysense, UK display product specialists since 1978.

Specifications

Full specifications for the SFLA3B A3 outdoor lockable poster case in satin black anodised aluminium. This is a permanent indoor and outdoor signage solution for compliance documents, essential notices and branded information in environments where protection, security and presentation all matter.

A3
297 x 420mm
45mm
Frame Profile
Key-Lock
Tamper-Proof
Weatherproof
Sealed
Shatter-Proof
PET Door
Specification Detail What This Means for You
Poster Size A3 (297mm x 420mm) The agile dual-purpose format. Accepts one A3 poster or two A4 documents displayed side by side. The ideal size for compliance documents, licensing, menus, tariffs and essential notices in spaces where larger cases would block walkways.
Frame Material Anodised aluminium, satin black Frames information with authority rather than apology. The black finish matches hospitality, corporate and contemporary residential interiors where silver would look institutional. Anodised for corrosion-free indoor and outdoor use.
Frame Profile 45mm extruded aluminium Heavy-duty construction for permanent wall mounting. Wider than standard poster frame profiles for structural rigidity and tamper resistance.
Security Key lock Tamper-proof access control for legally required documents, official tariffs and compliance notices. The lock ensures your information cannot be altered, defaced or removed by the public.
Weather Seal Heavy-duty internal rubber gasket Full-perimeter seal blocks moisture, wind and dampness. Keeps documents flat and legible in car parks, loading bays, stairwells, unheated corridors and outdoor environments.
Door Shatter-resistant anti-glare UV-stabilised PET High-impact glazing for the tight corridors, lift lobbies and stairwells where A3 cases are mounted. Absorbs impacts from elbows, bags and trolleys without cracking. Anti-glare for readability. UV-stabilised against yellowing.
Use Outdoor and indoor Engineered for permanent wall mounting in all UK conditions. Equally effective indoors in corridors, lobbies, lifts, stairwells and public-access areas.
Mounting Wall fixings included Screws and wall plugs supplied for secure, permanent installation on brick, block, plaster and concrete walls.
Also Available In A3 silver; A2 and A1 in satin black Silver A3 for lighter interiors. Larger formats for bigger poster sizes using the same construction, weather seal and security.

Delivery & Returns

Free delivery on every order, no minimum spend

UK Mainland standard delivery included on everything we sell.

Standard

Free

Always included, no minimum order

Express

£9.95

Express options shown at checkout where available

Lead time

2 to 3 days

Working days, UK Mainland

Returns

28 days

Original condition and packaging

Good to know

  • Orders before 4pm typically ship the same day
  • Tracking email sent on dispatch
  • Ground-floor, accessible delivery point

Returns must be unused and in original packaging. Full delivery information  ·  Returns policy

FAQs

Questions About the A3 Outdoor Lockable Poster Case in Black

Q: Can I display two A4 documents side by side in this case?

A: Yes. A3 (297mm x 420mm) is exactly double A4. Two standard A4 documents fit side by side within the case. Premises licence and food hygiene certificate. Fire plan and emergency contacts. One professional frame, two essential documents, zero clutter.

Q: Is this case weatherproof enough for outdoor use?

A: Yes. The heavy-duty internal rubber gasket creates a full-perimeter seal that blocks driving rain, wind-blown moisture and persistent dampness. Car park tariffs, outdoor directional signage and loading bay instructions stay dry and legible through everything the British climate delivers.

Q: Why use a lockable case for A3 documents instead of a simple frame or acrylic holder?

A: Acrylic holders snap, scratch and let in moisture. Standard frames offer no security against tampering. This extruded aluminium case with a key lock and weather seal protects your documents permanently. For legally required notices, compliance certificates and tariffs that must remain unaltered, security is not optional.

Q: Is A3 too small for advertising?

A: A3 is not designed for broad-reach advertising. It is designed for dead zones: narrow pillars, stairwells, lift lobbies, corridors beside fire doors and the tight spaces where larger cases would block walkways. In these locations, A3 transforms unused wall space into a secure, targeted communication point without obstructing foot traffic.

Q: Why choose satin black instead of silver?

A: Silver frames in corridors and lifts look industrial and bureaucratic. The satin black finish frames your information with authority, matching hospitality venues, corporate lobbies, boutique retail and contemporary residential interiors. Silver says this notice is here because it has to be. Black says it matters.

Q: Does requiring a key make poster changes inconvenient?

A: It adds seconds. That is the point. A3 is the standard format for legal and compliance documents where security is paramount. The key lock guarantees your official notices, pricing structures and certificates cannot be altered or removed by the public. The few seconds to unlock are the guarantee that your compliance stays intact.

Q: Will the PET door crack if it gets bumped in a tight corridor?

A: No. The shatter-resistant PET glazing is specifically chosen for the high-contact environments where A3 cases live: corridors, stairwells, lift lobbies and narrow passageways. It absorbs impacts from elbows, bags, trolleys and moving furniture without cracking or shattering. Glass and acrylic cannot make the same claim.

Q: Will documents curl in an unheated stairwell or loading bay?

A: No. The weather-sealed gasket blocks the moisture ingress that causes paper to curl, warp and rot in damp, unheated environments. Standard indoor frames and acrylic holders offer no protection against humidity. This case keeps documents flat and pristine regardless of temperature or dampness.

Q: Is this case suitable for displaying a premises licence?

A: Yes. The A3 format is the standard for premises licences, and the key lock ensures the document cannot be tampered with or removed. The satin black frame presents the licence as a professional part of the venue design rather than a curling printout stuck to the wall with tape.

Q: Can I mount this inside a lift?

A: Yes. The A3 format is the ideal scale for lift interiors. Building management notices, emergency procedures, Wi-Fi codes and floor directories all fit within the frame. The key lock prevents tampering by residents or visitors, and the shatter-resistant door handles the constant contact that lift-mounted signage endures.

Q: Is this more expensive than a simple acrylic sign holder?

A: Yes. An acrylic holder costs less upfront but offers no security, no weather protection and no impact resistance. It snaps, scratches, lets in moisture and needs replacing regularly. The SFLA3B is a permanent aluminium fixture that protects your documents for years. The frame pays for itself by eliminating the cycle of damage and replacement.

Q: Will the anodised aluminium corrode outdoors?

A: No. The anodising process creates a hard, corrosion-resistant surface that withstands years of outdoor exposure without rusting, peeling or degrading. The satin black finish is integrated into the anodised layer, not painted on, so it will not chip or flake.

Q: What other sizes are available?

A: A2 and A1 in the same satin black anodised aluminium with the same lock, weather seal and shatter-resistant PET door. A3 is also available in silver for environments where a lighter frame is preferred.

Q: How do I change the document once the case is wall-mounted?

A: Unlock the key lock, open the hinged door, swap the document, close the door and lock. Under a minute. The case stays wall-mounted. Only the content changes.

Knowledge Hub

Guides for Professional Signage and Compliance Displays

A lockable poster case protects your documents. The businesses that get the most from their signage are the ones that think about placement, presentation and how each display fits into the broader branded environment. These guides cover the practical side.

A3 Lockable Anodised Aluminium Black Poster Case with 45mm Frame Profile With Wall Fixings

Product code: SFLA3B
Every building has dead zones. The narrow pillar between two doorways. The stairwell wall nobody decorates. The lift lobby where notices go to di...
Inc. VAT £65.00 Ex. VAT £54.17
Colour - Black
Paper Size - A3
In Stock - UK Dispatch

Printed items deliver in 3–5 working days. Need it sooner? Call us for an express quote: 01279 460 460

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A3 Printing Service on 190gsm Silk Paper for Indoor Posters and Signage

A3 Printing Service on 190gsm Silk Paper for Indoor Posters and Signage

£12.00

(Inc VAT)

£54.17

(Exc VAT)

A3 Printing Service on 220gsm Waterproof Polypropylene for Outdoor Posters and Signage

A3 Printing Service on 220gsm Waterproof Polypropylene for Outdoor Posters and Signage

£42.00

(Inc VAT)

£54.17

(Exc VAT)

Overview

Description

Specifications

Delivery & Returns

FAQs

Knowledge Hub

A3 Outdoor Lockable Poster Case in Black Anodised Aluminium

Right now, somewhere in your building, a legally required certificate is stuck to a wall with blu-tack. The premises licence is curling at the corners. The food hygiene rating is yellowing behind a strip of sellotape. The fire evacuation plan is half-hidden behind a coat hook. It looks neglected because it is neglected, and every customer, inspector and visitor who sees it draws the same conclusion about the business behind it. The SFLA3B solves that permanently. This is a lockable, weatherproof, shatter-resistant A3 poster case in satin black anodised aluminium that turns mandatory paperwork, compliance documents and essential signage into a curated part of your interior or exterior design. The key lock ensures your official notices cannot be tampered with. The weather seal keeps them pristine in unheated stairwells, outdoor car parks and loading bays. The satin black finish frames them with authority rather than apology.

A3 is the agile format. One high-impact A3 poster, or two standard A4 documents displayed side by side. Premises licence and food hygiene certificate together in one professional frame. Wall fixings included. Free UK mainland delivery.

Why This A3 Case Replaces Every Alternative

  • Tamper-proof key lock for mandatory security: When displaying legally required information, official tariffs or compliance documents, you cannot risk the public altering or removing them. The key lock ensures your notices stay exactly as you installed them. In unsupervised corridors, car parks, lift lobbies and public-access areas, that security is not optional. It is a compliance requirement.
  • Heavy-duty weather seal for outdoor reliability: An industrial-grade internal rubber gasket runs the full perimeter of the door, blocking driving rain, wind-blown debris and persistent dampness. Car park tariffs, outdoor directional signage, smoking area rules and loading bay instructions stay legible and dry through heavy British rain. Standard indoor frames let moisture in within weeks, causing paper to curl and rot in unheated environments.
  • Shatter-resistant UV-stabilised PET door for corridor armour: A3 cases are typically mounted in tight corridors, lift lobbies, stairwells and narrow passageways where they are constantly bumped by elbows, bags, trolleys and moving furniture. Glass breaks. Acrylic cracks and yellows. The high-impact PET glazing absorbs punishment without shattering, and the UV stabilisation keeps the view clear for years.
  • A3 format as the agile double-A4 footprint: At 297mm x 420mm, A3 is the perfect dual-purpose size. Display one high-impact A3 poster or neatly mount two standard A4 documents side by side. Premises licence and food hygiene certificate. Fire plan and emergency contacts. Wi-Fi code and building regulations. One frame, two documents, zero clutter.
  • Satin black anodised aluminium frame: Silver frames in lifts and corridors look industrial and bureaucratic. The satin black finish frames your information with authority, matching high-end corporate interiors, hospitality venues, boutique retail and contemporary residential lobbies. The black finish tells the viewer this information is important rather than just obligatory.
  • 45mm extruded aluminium profile: Heavy-duty construction for permanent wall mounting. The extruded aluminium resists corrosion, warping and degradation through years of indoor and outdoor exposure. A permanent architectural fixture, not a temporary notice holder.
  • Wall fixings included: Screws and wall plugs supplied for secure, permanent installation. Once mounted, the case stays. The construction resists tampering and forced removal.

Where This A3 Poster Case Earns Its Place

Hospitality and Retail (Licensing and Policies) The Compliance Vault. The professional way to display premises licences, food hygiene ratings, Challenge 25 policies and allergen notices at the entrance or behind the bar without undermining the venue's aesthetic. The satin black frame makes compliance look curated rather than cobbled together.
Corporate and Residential (Lifts and Lobbies) The Executive Notice. The right scale for mounting inside elevators, above mailboxes or in corridors to display building management notices, Wi-Fi codes, emergency procedures and fire safety plans securely and professionally.
Private Car Parks and Facilities Management The Tariff Protector. Parking charges, terms and conditions, automated gate instructions and out-of-hours emergency contacts displayed securely outdoors where unsupervised signage is constantly at risk of defacement and weather damage.
Boutique Cafes and Independent Restaurants The Niche Menu. The perfect format for separating the drinks and desserts list from the main menu, mounting it beside the ordering till or at the entrance. The black frame matches contemporary hospitality interiors without looking like a council noticeboard.
Schools, NHS and Public Sector Safeguarding policies, visitor information, health campaigns and directional signage in corridors and reception areas where notices must be protected from tampering and kept pristine in high-traffic environments.

Need a Larger Case or a Silver Finish?

The same lockable case is available in A2 and A1 in satin black for larger poster formats. A silver A3 version is also available for environments where a lighter frame is preferred.

Call us on 01279460460 or get in touch for volume orders or installation advice.

The Displaysense A3 Outdoor Lockable Poster Case (SFLA3B) is a satin black anodised aluminium weatherproof poster case with key-lock security, heavy-duty internal rubber weather seal, shatter-resistant anti-glare UV-stabilised PET door, 45mm extruded aluminium frame profile and wall fixings included. A3 format (297mm x 420mm). Accepts one A3 poster or two A4 documents side by side. Designed for permanent indoor and outdoor wall mounting. Tamper-proof, weatherproof and impact-resistant. Suitable for hospitality licensing, retail compliance, corporate lobbies, residential buildings, car parks, cafes, schools, NHS and public sector. Also available in A2 and A1 in satin black, and A3 in silver. Displaysense, UK display product specialists since 1978.

Every building has dead zones. The narrow pillar between two doorways. The stairwell wall nobody decorates. The lift lobby where notices go to die. The corridor beside the loading bay. These are the spaces where essential information gets pinned up with tape, ignored until it curls, and eventually replaced with another piece of tape and another curling printout. The SFLA3B transforms those dead zones into secure, professional communication hubs. A3 is the format designed for tight spaces where a larger case would block the walkway and a smaller case would not command attention. The lockable door keeps the content protected. The weather seal keeps it flat in unheated, damp or draughty environments. The satin black frame makes it look like it belongs there.

The A3 format is the natural compliance size. It accepts one A3 document or two standard A4 sheets side by side. A premises licence beside a food hygiene certificate. A fire evacuation plan beside an emergency contacts sheet. A parking tariff beside the terms and conditions. Every business has documents that must be displayed. This case displays them in a way that looks professional, stays tamper-proof and survives the environment they are mounted in, whether that is a heated restaurant entrance, an unheated stairwell or an outdoor car park wall.

Competitors sell A3 frames as pure utilitarian hardware for fire escape routes and health and safety notices, using flimsy rounded silver profiles that look bureaucratic. The SFLA3B reframes the format. The satin black anodised aluminium elevates the case from a mandatory requirement into an architectural element that matches the interior design rather than undermining it. In a boutique cafe, a hotel corridor, a residential lobby or a corporate lift, the black finish projects authority. Silver says this notice is here because it has to be. Black says this notice is here because it matters.

The shatter-resistant PET door is critical at this format. A3 cases live in the tightest spaces in a building: beside fire doors, in narrow corridors, inside lift cars, above stairwell handrails. These are high-contact zones where elbows, bags, trolleys and moving furniture make constant contact with the case. Glass shatters. Acrylic cracks. The PET glazing absorbs the daily punishment and keeps the document behind it in clear, readable focus.

Why This Case Outperforms Acrylic Sign Holders and Standard Frames

  • A3 lockable poster case in satin black anodised aluminium with 45mm extruded frame for permanent indoor and outdoor wall mounting
  • Key-lock security ensuring compliance documents, official notices and tariffs cannot be tampered with or removed
  • Heavy-duty internal rubber weather seal blocking moisture in car parks, loading bays, stairwells and unheated corridors
  • Shatter-resistant anti-glare UV-stabilised PET door engineered for the high-contact environments where A3 cases are mounted
  • Accepts one A3 poster or two A4 documents displayed side by side in one professional frame
  • Satin black finish that frames information with authority rather than looking institutional
  • Wall fixings included for permanent, secure installation

Outfitting Multiple Locations or a Property Portfolio?

For multi-unit orders across hotels, restaurant groups, residential blocks or corporate estates, contact our UK team. We supply volume orders with consistent finish, matching hardware and coordinated delivery.

Call us on 01279460460 or get in touch and we will build the order.

The Displaysense SFLA3B is an A3 outdoor lockable poster case in satin black anodised aluminium with key-lock security, rubber weather seal, shatter-resistant PET door, 45mm extruded frame and wall fixings. Accepts A3 or two A4 documents. Indoor and outdoor. Also in A2, A1 black and A3 silver. Displaysense, UK display product specialists since 1978.

Full specifications for the SFLA3B A3 outdoor lockable poster case in satin black anodised aluminium. This is a permanent indoor and outdoor signage solution for compliance documents, essential notices and branded information in environments where protection, security and presentation all matter.

A3
297 x 420mm
45mm
Frame Profile
Key-Lock
Tamper-Proof
Weatherproof
Sealed
Shatter-Proof
PET Door
Specification Detail What This Means for You
Poster Size A3 (297mm x 420mm) The agile dual-purpose format. Accepts one A3 poster or two A4 documents displayed side by side. The ideal size for compliance documents, licensing, menus, tariffs and essential notices in spaces where larger cases would block walkways.
Frame Material Anodised aluminium, satin black Frames information with authority rather than apology. The black finish matches hospitality, corporate and contemporary residential interiors where silver would look institutional. Anodised for corrosion-free indoor and outdoor use.
Frame Profile 45mm extruded aluminium Heavy-duty construction for permanent wall mounting. Wider than standard poster frame profiles for structural rigidity and tamper resistance.
Security Key lock Tamper-proof access control for legally required documents, official tariffs and compliance notices. The lock ensures your information cannot be altered, defaced or removed by the public.
Weather Seal Heavy-duty internal rubber gasket Full-perimeter seal blocks moisture, wind and dampness. Keeps documents flat and legible in car parks, loading bays, stairwells, unheated corridors and outdoor environments.
Door Shatter-resistant anti-glare UV-stabilised PET High-impact glazing for the tight corridors, lift lobbies and stairwells where A3 cases are mounted. Absorbs impacts from elbows, bags and trolleys without cracking. Anti-glare for readability. UV-stabilised against yellowing.
Use Outdoor and indoor Engineered for permanent wall mounting in all UK conditions. Equally effective indoors in corridors, lobbies, lifts, stairwells and public-access areas.
Mounting Wall fixings included Screws and wall plugs supplied for secure, permanent installation on brick, block, plaster and concrete walls.
Also Available In A3 silver; A2 and A1 in satin black Silver A3 for lighter interiors. Larger formats for bigger poster sizes using the same construction, weather seal and security.

Free delivery on every order, no minimum spend

UK Mainland standard delivery included on everything we sell.

Standard

Free

Always included, no minimum order

Express

£9.95

Express options shown at checkout where available

Lead time

2 to 3 days

Working days, UK Mainland

Returns

28 days

Original condition and packaging

Good to know

  • Orders before 4pm typically ship the same day
  • Tracking email sent on dispatch
  • Ground-floor, accessible delivery point

Returns must be unused and in original packaging. Full delivery information  ·  Returns policy

Questions About the A3 Outdoor Lockable Poster Case in Black

Q: Can I display two A4 documents side by side in this case?

A: Yes. A3 (297mm x 420mm) is exactly double A4. Two standard A4 documents fit side by side within the case. Premises licence and food hygiene certificate. Fire plan and emergency contacts. One professional frame, two essential documents, zero clutter.

Q: Is this case weatherproof enough for outdoor use?

A: Yes. The heavy-duty internal rubber gasket creates a full-perimeter seal that blocks driving rain, wind-blown moisture and persistent dampness. Car park tariffs, outdoor directional signage and loading bay instructions stay dry and legible through everything the British climate delivers.

Q: Why use a lockable case for A3 documents instead of a simple frame or acrylic holder?

A: Acrylic holders snap, scratch and let in moisture. Standard frames offer no security against tampering. This extruded aluminium case with a key lock and weather seal protects your documents permanently. For legally required notices, compliance certificates and tariffs that must remain unaltered, security is not optional.

Q: Is A3 too small for advertising?

A: A3 is not designed for broad-reach advertising. It is designed for dead zones: narrow pillars, stairwells, lift lobbies, corridors beside fire doors and the tight spaces where larger cases would block walkways. In these locations, A3 transforms unused wall space into a secure, targeted communication point without obstructing foot traffic.

Q: Why choose satin black instead of silver?

A: Silver frames in corridors and lifts look industrial and bureaucratic. The satin black finish frames your information with authority, matching hospitality venues, corporate lobbies, boutique retail and contemporary residential interiors. Silver says this notice is here because it has to be. Black says it matters.

Q: Does requiring a key make poster changes inconvenient?

A: It adds seconds. That is the point. A3 is the standard format for legal and compliance documents where security is paramount. The key lock guarantees your official notices, pricing structures and certificates cannot be altered or removed by the public. The few seconds to unlock are the guarantee that your compliance stays intact.

Q: Will the PET door crack if it gets bumped in a tight corridor?

A: No. The shatter-resistant PET glazing is specifically chosen for the high-contact environments where A3 cases live: corridors, stairwells, lift lobbies and narrow passageways. It absorbs impacts from elbows, bags, trolleys and moving furniture without cracking or shattering. Glass and acrylic cannot make the same claim.

Q: Will documents curl in an unheated stairwell or loading bay?

A: No. The weather-sealed gasket blocks the moisture ingress that causes paper to curl, warp and rot in damp, unheated environments. Standard indoor frames and acrylic holders offer no protection against humidity. This case keeps documents flat and pristine regardless of temperature or dampness.

Q: Is this case suitable for displaying a premises licence?

A: Yes. The A3 format is the standard for premises licences, and the key lock ensures the document cannot be tampered with or removed. The satin black frame presents the licence as a professional part of the venue design rather than a curling printout stuck to the wall with tape.

Q: Can I mount this inside a lift?

A: Yes. The A3 format is the ideal scale for lift interiors. Building management notices, emergency procedures, Wi-Fi codes and floor directories all fit within the frame. The key lock prevents tampering by residents or visitors, and the shatter-resistant door handles the constant contact that lift-mounted signage endures.

Q: Is this more expensive than a simple acrylic sign holder?

A: Yes. An acrylic holder costs less upfront but offers no security, no weather protection and no impact resistance. It snaps, scratches, lets in moisture and needs replacing regularly. The SFLA3B is a permanent aluminium fixture that protects your documents for years. The frame pays for itself by eliminating the cycle of damage and replacement.

Q: Will the anodised aluminium corrode outdoors?

A: No. The anodising process creates a hard, corrosion-resistant surface that withstands years of outdoor exposure without rusting, peeling or degrading. The satin black finish is integrated into the anodised layer, not painted on, so it will not chip or flake.

Q: What other sizes are available?

A: A2 and A1 in the same satin black anodised aluminium with the same lock, weather seal and shatter-resistant PET door. A3 is also available in silver for environments where a lighter frame is preferred.

Q: How do I change the document once the case is wall-mounted?

A: Unlock the key lock, open the hinged door, swap the document, close the door and lock. Under a minute. The case stays wall-mounted. Only the content changes.

Guides for Professional Signage and Compliance Displays

A lockable poster case protects your documents. The businesses that get the most from their signage are the ones that think about placement, presentation and how each display fits into the broader branded environment. These guides cover the practical side.

Overview

A3 Outdoor Lockable Poster Case in Black Anodised Aluminium

Right now, somewhere in your building, a legally required certificate is stuck to a wall with blu-tack. The premises licence is curling at the corners. The food hygiene rating is yellowing behind a strip of sellotape. The fire evacuation plan is half-hidden behind a coat hook. It looks neglected because it is neglected, and every customer, inspector and visitor who sees it draws the same conclusion about the business behind it. The SFLA3B solves that permanently. This is a lockable, weatherproof, shatter-resistant A3 poster case in satin black anodised aluminium that turns mandatory paperwork, compliance documents and essential signage into a curated part of your interior or exterior design. The key lock ensures your official notices cannot be tampered with. The weather seal keeps them pristine in unheated stairwells, outdoor car parks and loading bays. The satin black finish frames them with authority rather than apology.

A3 is the agile format. One high-impact A3 poster, or two standard A4 documents displayed side by side. Premises licence and food hygiene certificate together in one professional frame. Wall fixings included. Free UK mainland delivery.

Why This A3 Case Replaces Every Alternative

  • Tamper-proof key lock for mandatory security: When displaying legally required information, official tariffs or compliance documents, you cannot risk the public altering or removing them. The key lock ensures your notices stay exactly as you installed them. In unsupervised corridors, car parks, lift lobbies and public-access areas, that security is not optional. It is a compliance requirement.
  • Heavy-duty weather seal for outdoor reliability: An industrial-grade internal rubber gasket runs the full perimeter of the door, blocking driving rain, wind-blown debris and persistent dampness. Car park tariffs, outdoor directional signage, smoking area rules and loading bay instructions stay legible and dry through heavy British rain. Standard indoor frames let moisture in within weeks, causing paper to curl and rot in unheated environments.
  • Shatter-resistant UV-stabilised PET door for corridor armour: A3 cases are typically mounted in tight corridors, lift lobbies, stairwells and narrow passageways where they are constantly bumped by elbows, bags, trolleys and moving furniture. Glass breaks. Acrylic cracks and yellows. The high-impact PET glazing absorbs punishment without shattering, and the UV stabilisation keeps the view clear for years.
  • A3 format as the agile double-A4 footprint: At 297mm x 420mm, A3 is the perfect dual-purpose size. Display one high-impact A3 poster or neatly mount two standard A4 documents side by side. Premises licence and food hygiene certificate. Fire plan and emergency contacts. Wi-Fi code and building regulations. One frame, two documents, zero clutter.
  • Satin black anodised aluminium frame: Silver frames in lifts and corridors look industrial and bureaucratic. The satin black finish frames your information with authority, matching high-end corporate interiors, hospitality venues, boutique retail and contemporary residential lobbies. The black finish tells the viewer this information is important rather than just obligatory.
  • 45mm extruded aluminium profile: Heavy-duty construction for permanent wall mounting. The extruded aluminium resists corrosion, warping and degradation through years of indoor and outdoor exposure. A permanent architectural fixture, not a temporary notice holder.
  • Wall fixings included: Screws and wall plugs supplied for secure, permanent installation. Once mounted, the case stays. The construction resists tampering and forced removal.

Where This A3 Poster Case Earns Its Place

Hospitality and Retail (Licensing and Policies) The Compliance Vault. The professional way to display premises licences, food hygiene ratings, Challenge 25 policies and allergen notices at the entrance or behind the bar without undermining the venue's aesthetic. The satin black frame makes compliance look curated rather than cobbled together.
Corporate and Residential (Lifts and Lobbies) The Executive Notice. The right scale for mounting inside elevators, above mailboxes or in corridors to display building management notices, Wi-Fi codes, emergency procedures and fire safety plans securely and professionally.
Private Car Parks and Facilities Management The Tariff Protector. Parking charges, terms and conditions, automated gate instructions and out-of-hours emergency contacts displayed securely outdoors where unsupervised signage is constantly at risk of defacement and weather damage.
Boutique Cafes and Independent Restaurants The Niche Menu. The perfect format for separating the drinks and desserts list from the main menu, mounting it beside the ordering till or at the entrance. The black frame matches contemporary hospitality interiors without looking like a council noticeboard.
Schools, NHS and Public Sector Safeguarding policies, visitor information, health campaigns and directional signage in corridors and reception areas where notices must be protected from tampering and kept pristine in high-traffic environments.

Need a Larger Case or a Silver Finish?

The same lockable case is available in A2 and A1 in satin black for larger poster formats. A silver A3 version is also available for environments where a lighter frame is preferred.

Call us on 01279460460 or get in touch for volume orders or installation advice.

The Displaysense A3 Outdoor Lockable Poster Case (SFLA3B) is a satin black anodised aluminium weatherproof poster case with key-lock security, heavy-duty internal rubber weather seal, shatter-resistant anti-glare UV-stabilised PET door, 45mm extruded aluminium frame profile and wall fixings included. A3 format (297mm x 420mm). Accepts one A3 poster or two A4 documents side by side. Designed for permanent indoor and outdoor wall mounting. Tamper-proof, weatherproof and impact-resistant. Suitable for hospitality licensing, retail compliance, corporate lobbies, residential buildings, car parks, cafes, schools, NHS and public sector. Also available in A2 and A1 in satin black, and A3 in silver. Displaysense, UK display product specialists since 1978.

Description

Every building has dead zones. The narrow pillar between two doorways. The stairwell wall nobody decorates. The lift lobby where notices go to die. The corridor beside the loading bay. These are the spaces where essential information gets pinned up with tape, ignored until it curls, and eventually replaced with another piece of tape and another curling printout. The SFLA3B transforms those dead zones into secure, professional communication hubs. A3 is the format designed for tight spaces where a larger case would block the walkway and a smaller case would not command attention. The lockable door keeps the content protected. The weather seal keeps it flat in unheated, damp or draughty environments. The satin black frame makes it look like it belongs there.

The A3 format is the natural compliance size. It accepts one A3 document or two standard A4 sheets side by side. A premises licence beside a food hygiene certificate. A fire evacuation plan beside an emergency contacts sheet. A parking tariff beside the terms and conditions. Every business has documents that must be displayed. This case displays them in a way that looks professional, stays tamper-proof and survives the environment they are mounted in, whether that is a heated restaurant entrance, an unheated stairwell or an outdoor car park wall.

Competitors sell A3 frames as pure utilitarian hardware for fire escape routes and health and safety notices, using flimsy rounded silver profiles that look bureaucratic. The SFLA3B reframes the format. The satin black anodised aluminium elevates the case from a mandatory requirement into an architectural element that matches the interior design rather than undermining it. In a boutique cafe, a hotel corridor, a residential lobby or a corporate lift, the black finish projects authority. Silver says this notice is here because it has to be. Black says this notice is here because it matters.

The shatter-resistant PET door is critical at this format. A3 cases live in the tightest spaces in a building: beside fire doors, in narrow corridors, inside lift cars, above stairwell handrails. These are high-contact zones where elbows, bags, trolleys and moving furniture make constant contact with the case. Glass shatters. Acrylic cracks. The PET glazing absorbs the daily punishment and keeps the document behind it in clear, readable focus.

Why This Case Outperforms Acrylic Sign Holders and Standard Frames

  • A3 lockable poster case in satin black anodised aluminium with 45mm extruded frame for permanent indoor and outdoor wall mounting
  • Key-lock security ensuring compliance documents, official notices and tariffs cannot be tampered with or removed
  • Heavy-duty internal rubber weather seal blocking moisture in car parks, loading bays, stairwells and unheated corridors
  • Shatter-resistant anti-glare UV-stabilised PET door engineered for the high-contact environments where A3 cases are mounted
  • Accepts one A3 poster or two A4 documents displayed side by side in one professional frame
  • Satin black finish that frames information with authority rather than looking institutional
  • Wall fixings included for permanent, secure installation

Outfitting Multiple Locations or a Property Portfolio?

For multi-unit orders across hotels, restaurant groups, residential blocks or corporate estates, contact our UK team. We supply volume orders with consistent finish, matching hardware and coordinated delivery.

Call us on 01279460460 or get in touch and we will build the order.

The Displaysense SFLA3B is an A3 outdoor lockable poster case in satin black anodised aluminium with key-lock security, rubber weather seal, shatter-resistant PET door, 45mm extruded frame and wall fixings. Accepts A3 or two A4 documents. Indoor and outdoor. Also in A2, A1 black and A3 silver. Displaysense, UK display product specialists since 1978.

Specifications

Full specifications for the SFLA3B A3 outdoor lockable poster case in satin black anodised aluminium. This is a permanent indoor and outdoor signage solution for compliance documents, essential notices and branded information in environments where protection, security and presentation all matter.

A3
297 x 420mm
45mm
Frame Profile
Key-Lock
Tamper-Proof
Weatherproof
Sealed
Shatter-Proof
PET Door
Specification Detail What This Means for You
Poster Size A3 (297mm x 420mm) The agile dual-purpose format. Accepts one A3 poster or two A4 documents displayed side by side. The ideal size for compliance documents, licensing, menus, tariffs and essential notices in spaces where larger cases would block walkways.
Frame Material Anodised aluminium, satin black Frames information with authority rather than apology. The black finish matches hospitality, corporate and contemporary residential interiors where silver would look institutional. Anodised for corrosion-free indoor and outdoor use.
Frame Profile 45mm extruded aluminium Heavy-duty construction for permanent wall mounting. Wider than standard poster frame profiles for structural rigidity and tamper resistance.
Security Key lock Tamper-proof access control for legally required documents, official tariffs and compliance notices. The lock ensures your information cannot be altered, defaced or removed by the public.
Weather Seal Heavy-duty internal rubber gasket Full-perimeter seal blocks moisture, wind and dampness. Keeps documents flat and legible in car parks, loading bays, stairwells, unheated corridors and outdoor environments.
Door Shatter-resistant anti-glare UV-stabilised PET High-impact glazing for the tight corridors, lift lobbies and stairwells where A3 cases are mounted. Absorbs impacts from elbows, bags and trolleys without cracking. Anti-glare for readability. UV-stabilised against yellowing.
Use Outdoor and indoor Engineered for permanent wall mounting in all UK conditions. Equally effective indoors in corridors, lobbies, lifts, stairwells and public-access areas.
Mounting Wall fixings included Screws and wall plugs supplied for secure, permanent installation on brick, block, plaster and concrete walls.
Also Available In A3 silver; A2 and A1 in satin black Silver A3 for lighter interiors. Larger formats for bigger poster sizes using the same construction, weather seal and security.

Delivery & Returns

Free delivery on every order, no minimum spend

UK Mainland standard delivery included on everything we sell.

Standard

Free

Always included, no minimum order

Express

£9.95

Express options shown at checkout where available

Lead time

2 to 3 days

Working days, UK Mainland

Returns

28 days

Original condition and packaging

Good to know

  • Orders before 4pm typically ship the same day
  • Tracking email sent on dispatch
  • Ground-floor, accessible delivery point

Returns must be unused and in original packaging. Full delivery information  ·  Returns policy

FAQs

Questions About the A3 Outdoor Lockable Poster Case in Black

Q: Can I display two A4 documents side by side in this case?

A: Yes. A3 (297mm x 420mm) is exactly double A4. Two standard A4 documents fit side by side within the case. Premises licence and food hygiene certificate. Fire plan and emergency contacts. One professional frame, two essential documents, zero clutter.

Q: Is this case weatherproof enough for outdoor use?

A: Yes. The heavy-duty internal rubber gasket creates a full-perimeter seal that blocks driving rain, wind-blown moisture and persistent dampness. Car park tariffs, outdoor directional signage and loading bay instructions stay dry and legible through everything the British climate delivers.

Q: Why use a lockable case for A3 documents instead of a simple frame or acrylic holder?

A: Acrylic holders snap, scratch and let in moisture. Standard frames offer no security against tampering. This extruded aluminium case with a key lock and weather seal protects your documents permanently. For legally required notices, compliance certificates and tariffs that must remain unaltered, security is not optional.

Q: Is A3 too small for advertising?

A: A3 is not designed for broad-reach advertising. It is designed for dead zones: narrow pillars, stairwells, lift lobbies, corridors beside fire doors and the tight spaces where larger cases would block walkways. In these locations, A3 transforms unused wall space into a secure, targeted communication point without obstructing foot traffic.

Q: Why choose satin black instead of silver?

A: Silver frames in corridors and lifts look industrial and bureaucratic. The satin black finish frames your information with authority, matching hospitality venues, corporate lobbies, boutique retail and contemporary residential interiors. Silver says this notice is here because it has to be. Black says it matters.

Q: Does requiring a key make poster changes inconvenient?

A: It adds seconds. That is the point. A3 is the standard format for legal and compliance documents where security is paramount. The key lock guarantees your official notices, pricing structures and certificates cannot be altered or removed by the public. The few seconds to unlock are the guarantee that your compliance stays intact.

Q: Will the PET door crack if it gets bumped in a tight corridor?

A: No. The shatter-resistant PET glazing is specifically chosen for the high-contact environments where A3 cases live: corridors, stairwells, lift lobbies and narrow passageways. It absorbs impacts from elbows, bags, trolleys and moving furniture without cracking or shattering. Glass and acrylic cannot make the same claim.

Q: Will documents curl in an unheated stairwell or loading bay?

A: No. The weather-sealed gasket blocks the moisture ingress that causes paper to curl, warp and rot in damp, unheated environments. Standard indoor frames and acrylic holders offer no protection against humidity. This case keeps documents flat and pristine regardless of temperature or dampness.

Q: Is this case suitable for displaying a premises licence?

A: Yes. The A3 format is the standard for premises licences, and the key lock ensures the document cannot be tampered with or removed. The satin black frame presents the licence as a professional part of the venue design rather than a curling printout stuck to the wall with tape.

Q: Can I mount this inside a lift?

A: Yes. The A3 format is the ideal scale for lift interiors. Building management notices, emergency procedures, Wi-Fi codes and floor directories all fit within the frame. The key lock prevents tampering by residents or visitors, and the shatter-resistant door handles the constant contact that lift-mounted signage endures.

Q: Is this more expensive than a simple acrylic sign holder?

A: Yes. An acrylic holder costs less upfront but offers no security, no weather protection and no impact resistance. It snaps, scratches, lets in moisture and needs replacing regularly. The SFLA3B is a permanent aluminium fixture that protects your documents for years. The frame pays for itself by eliminating the cycle of damage and replacement.

Q: Will the anodised aluminium corrode outdoors?

A: No. The anodising process creates a hard, corrosion-resistant surface that withstands years of outdoor exposure without rusting, peeling or degrading. The satin black finish is integrated into the anodised layer, not painted on, so it will not chip or flake.

Q: What other sizes are available?

A: A2 and A1 in the same satin black anodised aluminium with the same lock, weather seal and shatter-resistant PET door. A3 is also available in silver for environments where a lighter frame is preferred.

Q: How do I change the document once the case is wall-mounted?

A: Unlock the key lock, open the hinged door, swap the document, close the door and lock. Under a minute. The case stays wall-mounted. Only the content changes.

Knowledge Hub

Guides for Professional Signage and Compliance Displays

A lockable poster case protects your documents. The businesses that get the most from their signage are the ones that think about placement, presentation and how each display fits into the broader branded environment. These guides cover the practical side.

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Frequently Asked Questions

A3 lockable poster cases are compact yet effective, offering a professional solution for displaying posters and announcements. Perfect for indoor and outdoor use, these cases combine functionality with a sleek design. Pair them with other display products like snap frames or leaflet holders for a cohesive setup.

Yes, we offer special pricing for bulk purchases of A3 lockable poster cases. Check the product page for volume discount details. For larger orders, contact us directly to receive a personalised quote tailored to your needs.

Delivery times and costs vary based on your location and the size of your order. Visit our delivery page for the latest shipping rates and estimated timelines.

Yes, our A3 lockable poster cases are suitable for both indoor and outdoor use. They feature weatherproof seals to safeguard your posters against rain, wind, and other elements. For additional outdoor display solutions, explore our durable pavement signs and weather-resistant chalkboards.

Yes, we offer custom printing services for A3 posters. Visit our printing services page, select the A3 size, upload your design, and place your order. Your posters will be printed to fit your A3 lockable case perfectly. ,

Keeping your A3 lockable poster case in great condition is simple. Wipe it clean with a damp cloth as needed. Each case includes a UV-resistant cover that protects your posters from fading and ensures your display remains sharp and professional.

A3 lockable poster cases are ideal for displaying smaller posters, advertisements, or notices in environments such as retail stores, offices, schools, restaurants, and public spaces. Their secure, weatherproof design makes them a reliable choice for both indoor and outdoor use, while allowing for easy updates.

To request a return, contact us at help@displaysense.co.uk for prior approval. All returns must be authorised in advance. Refunds will cover the cost of the product plus VAT. For full details, review our terms and conditions on our website.