Overview
Description
Specifications
Delivery & Returns
FAQs
Knowledge Hub
A3 Lockable Outdoor Poster Case in Silver Anodised Aluminium with Weather Seal
Every reception area, corridor and building entrance has a wall space that should be doing more. The fire safety notice. The visitor welcome. The treatment menu. The term dates. Right now it is probably pinned to a corkboard, taped to the glass or sitting in a snap frame that anyone can open and the weather will ruin within weeks. The SFLA3 replaces those compromises with a permanent, lockable, weatherproof A3 display that protects the poster inside and frames the message outside with the clean, professional authority of silver anodised aluminium. The silver finish is the universal institutional standard, chosen by schools, NHS trusts, councils and corporate estates.
A3 format (297mm x 420mm). Visible poster area: 280mm x 400mm. Overall frame dimensions: 370mm (W) x 490mm (H) x 30mm (D). Silver anodised aluminium construction with a durable finish that does not peel, flake or fade. Lockable hinged door with key. Internal rubber weather seal running the full perimeter. Non-reflective acrylic front panel with internal edge clips. Safety arm holds door open during poster changes. Wall fixings included. No assembly required. Poster not included. Free UK mainland delivery.
Protection, Security and Presentation in One Compact Frame
- Tamper-proof key lock for secure public display: Once locked, the poster is safe from interference, removal and unauthorised replacement. In schools, corridors and public-facing locations, the lock ensures safety-critical notices stay exactly as installed.
- Perimeter weather seal for total climate defence: An internal rubber gasket runs the full perimeter of the hinged door, sealing out driving rain, condensation, road spray and dust. Standard outdoor frames let moisture in through the snap edges. This case locks it out entirely.
- Non-reflective acrylic front panel for clear visibility: The acrylic keeps the A3 graphic fully visible without the glare that standard clear covers create under fluorescent corridor lighting or direct sunlight on exterior walls.
- Silver anodised aluminium as the institutional standard: Silver is the finish schools, NHS trusts, councils and corporate estates specify for signage. The universal professional finish that looks appropriate on every building material and beside every entrance.
- Safety arm and internal clips for hands-free poster loading: Unlock the door and a built-in safety arm holds it open. Both hands free. Slide the A3 poster against the back panel, clip the edges, close and lock. Seconds per change. No disassembly. No tools beyond the key. One person updates every frame across an estate.
- Compact A3 format for tight wall spaces: A3 fits where A2 and A1 cannot: beside narrow doors, on pillars, in corridors and in the tight entrance recesses of older buildings.
Sectors Where the A3 Silver Lockable Case Sets the Standard
| Schools, Nurseries, Colleges | Term dates, safeguarding notices, exam timetables, open day promotions and community information displayed at school gates, corridor junctions and campus entrances where the weather seal and lock protect content outside staffed hours and over the holiday periods. |
| NHS Hospitals, GP Surgeries, Dental Clinics | Patient information, clinic hours, vaccination schedules, compliance notices and directional signage in corridors, waiting areas and building entrances where the tamper-proof lock prevents interference with the content. |
| Councils, Libraries, Public | Community notices, planning information, service updates and public health campaigns displayed on exterior walls and in shared entrance areas where staff cannot monitor the signage constantly. |
| Corporate Offices, Reception Areas | Visitor information, fire safety notices, building directories and branded welcome messaging in corridors and reception areas where the silver finish matches the professional, neutral aesthetic of corporate interiors. |
| Leisure Centres, Pools, Sports Clubs | Class timetables, membership offers, health and safety notices and event listings in corridors and entrance areas where the weatherproof seal handles the humidity that these environments generate. |
| Care Homes, Charities, Communities | Visitor policies, activity schedules, safeguarding information and fundraising updates displayed at entrances and in shared areas where content must remain protected from interference and weather throughout the full week. |
Complete Your Setup with an A3 Poster Print
This lockable A3 poster case is ideal for displaying notices, promotions and informational signage securely for long-term indoor and outdoor use. For a premium dark-finish alternative, the same lockable case is available in A3 satin black for branded retail, hospitality and premium venue exteriors where the darker finish matches the interior design.
Call us on 01279460460 or get in touch for volume orders or multi-site rollout planning.
The Displaysense SFLA3 is a silver anodised aluminium A3 lockable outdoor poster case with key lock, hinged door, internal rubber perimeter weather seal, non-reflective acrylic front panel, safety arm, internal edge clips and wall fixings included. A3 format (297 x 420mm). Visible area: 280 x 400mm. Overall: 370mm W x 490mm H x 30mm D. Designed for permanent indoor and outdoor wall mounting in schools, NHS hospitals, GP surgeries, dental clinics, councils, libraries, corporate offices, reception areas, leisure centres and public buildings. Weatherproof, tamper-proof and impact-resistant. Also available in A3 satin black for branded retail and hospitality, and in A2, A1 and A0 silver for larger wall spaces. Displaysense, UK display product specialists since 1978.
The key lock is the feature that separates this poster case from every snap frame on the market. Snap frames are fast because anyone can open them: staff, visitors, students, patients and the public alike. This frame prioritises curated security. Once locked, the A3 poster inside is exclusively under the control of the designated keyholder. In schools, hospital corridors, council buildings and shared public spaces, the lock ensures that safety-critical notices, safeguarding information and compliance content stay exactly as installed until the authorised person decides to change them.
The internal rubber gasket running the full perimeter of the hinged door is what makes this a genuine outdoor poster case rather than an indoor frame bolted to an exterior wall. Standard snap frames rely on corner mitres and friction to keep moisture out, and they fail within weeks as temperature cycling warps the aluminium edges and lets driving rain, condensation and road spray reach the poster. This frame creates a continuous sealed barrier around the entire perimeter. The poster stays flat, dry and presentable through every season the British climate delivers without staff needing to check it after every storm. That operational advantage is the reason schools, NHS trusts and local authorities specify this case for outdoor notice boards.
The non-reflective acrylic front panel solves the visibility problem that standard clear covers create in two common environments: fluorescent-lit corridors and sun-facing exterior walls. In a school corridor under strip lighting, a standard cover turns into a mirror. On a south-facing wall in direct sunlight, the poster washes out completely. The non-reflective acrylic diffuses those light sources, keeping the A3 graphic readable at every angle and in every condition.
Silver is the finish that public-sector and institutional buyers specify. It is the universal professional standard that looks appropriate on every building material, in every corridor and beside every entrance without drawing attention to the hardware itself. In an NHS corridor, a school reception, a council building or a corporate office, the silver finish integrates with the existing signage and interior design scheme rather than introducing a colour that needs to be justified by a designer or a procurement team. That neutrality is why silver outsells every other finish in institutional settings across the UK.
What Ships in Your Pack
- 1 x A3 lockable outdoor poster case in silver anodised aluminium with key, safety arm and wall fixings
Outfitting Multiple Sites or a Public-Sector Estate?
We supply this lockable case to school estates, NHS trusts, local councils, leisure operators, corporate estates and charity networks across the UK. For multi-site orders our team can provide a tailored quote with coordinated delivery.
Call us on 01279460460 or send us your requirements and we will come back to you.
The Displaysense A3 lockable outdoor poster case in silver is a weatherproof, tamper-proof wall-mounted poster display with key lock, hinged door, internal rubber perimeter weather seal, non-reflective acrylic front panel, safety arm, internal edge clips and wall fixings included. A3 format (297 x 420mm). Visible area: 280 x 400mm. Overall: 370mm W x 490mm H x 30mm D. Designed for permanent indoor and outdoor wall mounting in schools, NHS hospitals, GP surgeries, dental clinics, councils, libraries, corporate offices, reception areas, leisure centres and public buildings. Also available in A3 satin black for branded retail and hospitality, and in A2, A1, A0 silver. Free UK delivery. Displaysense, UK display product specialists since 1978.
Full specifications for the A3 lockable outdoor poster case in silver anodised aluminium. Key lock, internal rubber perimeter weather seal, non-reflective acrylic front panel and silver aluminium frame. Engineered for permanent wall mounting in schools, hospitals, councils and corporate environments.
| Specification | Detail | What This Means for You |
|---|---|---|
| Poster Insert Size | A3 (portrait) | The compact institutional signage format. Ideal for school gates, clinic entrances, corridors and tight wall spaces on pillars. |
| Visible Area | 280 x 400mm | Full A3 sheet accepted (297 x 420mm). Visible poster area through the acrylic panel with a narrow frame overlap at each edge. |
| Overall Dimensions | 370mm (W) x 490mm (H) x 30mm (D) | Slim 30mm depth sits flush to the wall. Compact enough for school corridors, clinic doorways, reception pillars and the tight entrance recesses of older buildings. |
| Finish | Silver anodised alloy | The universal institutional standard. Integrates with existing signage in schools, NHS sites, councils and corporate offices. Neutral and professional. |
| Frame Build | Aluminium extruded profile | Lightweight but strong construction engineered for years of indoor and outdoor exposure without warping, corroding or degrading. Permanent structural rigidity at this format. |
| Front Panel | Anti-glare | Non-reflective acrylic diffuses fluorescent corridor lighting and direct sunlight. Keeps the poster readable at every angle without glare or white-out. |
| Security Lock | Tamper-proof key lock with hinged door | Only the designated keyholder changes the poster. Prevents interference with safety-critical notices in schools, hospitals and shared public buildings. |
| Weather Seal | Perimeter rubber gasket | Industrial-grade gasket creates a continuous sealed barrier against driving rain, condensation, road spray and wind-blown dust around the entire perimeter of the door. |
| Loading | Safety arm holds door, internal clips | Built-in arm props the door open hands-free. Clip the poster flat against the back panel, close and lock. |
| Mounting | Fixings in the box | Screws and plugs supplied for standard masonry. No assembly required. Drill, fix and display. Once mounted, a permanent fixture. |
| Suitable Settings | Indoor and outdoor wall mount for schools, NHS, councils, corporate and leisure use | Designed for corridors, reception areas, entrance walls, school gates, clinic doorways and exterior notice board positions. |
| Also Available In | A3 satin black; A2, A1, A0 silver | Black for branded retail and hospitality exteriors. Larger silver formats for bigger wall spaces where greater visual impact from across the street is needed. |
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 This A3 Silver Lockable Poster Case
Q: Why lockable not snap frame?
A: Snap frames are fast because anyone can open them: staff, visitors, students and patients alike. This key-lock case prioritises security. Once locked, the A3 poster is exclusively under the control of the keyholder. In schools, hospital corridors and council buildings, the lock ensures safety notices and compliance content stay exactly as installed until the authorised person decides to update them. No interference. No unauthorised replacement.
Q: How do I change the poster inside it?
A: Unlock the door with the key. A built-in safety arm holds it open hands-free. Slide the A3 poster against the back panel and clip the edges with the internal clips to hold it in position. Close the door and lock. The entire change takes seconds and one person handles the full process without tools or assistance. The frame stays on the wall throughout.
Q: Is the weather seal truly waterproof?
A: The internal rubber gasket runs the full perimeter of the hinged door, creating a continuous sealed barrier against driving rain, condensation, road spray and wind-blown debris. Standard snap frames rely on corner mitres and begin leaking within weeks as temperature cycling warps the edges. This case keeps the poster flat, dry and presentable through every season without staff checking after storms.
Q: What makes the front panel non-reflective?
A: The acrylic is treated to diffuse light rather than reflecting it. Under fluorescent corridor lighting or on a south-facing exterior wall in direct sunlight, the poster stays readable without glare or the mirror effect that untreated covers produce.
Q: Why choose silver rather than black?
A: Silver is the universal institutional standard. Schools, NHS trusts, councils and corporate estates specify it because it integrates with existing signage without introducing a colour that needs design approval. Silver is neutral and professional. Black is a design statement for branded retail and hospitality. Both are available in A3 with the same lock and seal.
Q: Is A3 large enough for a school gate or a clinic?
A: A3 is the compact format that fits where larger cases cannot. At 370mm wide by 490mm tall, it sits comfortably on a standard pillar, beside a narrow entrance or in a corridor recess. For more visual impact, the same lockable case is available in A2, A1 and A0.
Q: Can I mount this on brick, stone, render or plasterboard?
A: Wall fixings are included for standard masonry surfaces. For plasterboard, use appropriate cavity fixings rated for the weight of the case. For specialist substrates such as glass, composite panels or lightweight cladding, consult a local fitter for the right anchor type. Once mounted, the frame is a permanent wall fixture.
Q: Is this suitable for an NHS corridor or a clinic?
A: Yes. This case is widely specified by NHS trusts for corridor and entrance signage. Patient information, clinic hours, vaccination schedules, visitor policies and compliance notices stay protected behind the locked door and sealed frame.
Q: Can schools use this for outdoor safeguarding notices?
A: Yes. The weather seal protects the poster from rain, condensation and debris. The lock prevents unauthorised removal. Safeguarding notices, term dates, open day promotions and community information stay intact at school gates and building entrances throughout the term and holiday period without staff needing to monitor the display.
Q: How long does the silver finish last?
A: The anodised aluminium does not peel, flake or fade in UV light. It is engineered for years of permanent indoor and outdoor exposure in the same wall location without any visible degradation of the surface finish.
Q: Does this need any assembly at all?
A: No. The case arrives fully assembled and ready to mount. Drill the wall, fix the plugs, screw the frame into position and display. No assembly of the case itself is required at any stage.
Q: Is this available in other sizes?
A: Yes. The same silver lockable poster case is available in A2, A1 and A0 for larger wall spaces and higher-impact promotional displays. All share the same key lock, rubber weather seal and non-reflective acrylic panel. A3 is also available in satin black for branded retail, hospitality and premium venue exteriors where a darker finish is preferred.
Guides for Notice Display and Compliance Signage
A lockable poster case solves the security and weather problem. What you display inside it, where you mount it in the building and how you maintain the content over time determine whether it serves as effective communication or just another fixture people walk past. These guides cover the thinking behind professional institutional display.
A few reads worth your time:
- Noticeboard Buying Guide: How to Choose the Right Board for Your Space
- Choosing the Right Display Board: A Complete Guide for Offices, Schools and Events
- The Complete Paper Size Buying Guide
- How to Display Products and Keep Your Customers Safe
Downloads
Outdoor Lockable Aluminium Poster CaseOverview
A3 Lockable Outdoor Poster Case in Silver Anodised Aluminium with Weather Seal
Every reception area, corridor and building entrance has a wall space that should be doing more. The fire safety notice. The visitor welcome. The treatment menu. The term dates. Right now it is probably pinned to a corkboard, taped to the glass or sitting in a snap frame that anyone can open and the weather will ruin within weeks. The SFLA3 replaces those compromises with a permanent, lockable, weatherproof A3 display that protects the poster inside and frames the message outside with the clean, professional authority of silver anodised aluminium. The silver finish is the universal institutional standard, chosen by schools, NHS trusts, councils and corporate estates.
A3 format (297mm x 420mm). Visible poster area: 280mm x 400mm. Overall frame dimensions: 370mm (W) x 490mm (H) x 30mm (D). Silver anodised aluminium construction with a durable finish that does not peel, flake or fade. Lockable hinged door with key. Internal rubber weather seal running the full perimeter. Non-reflective acrylic front panel with internal edge clips. Safety arm holds door open during poster changes. Wall fixings included. No assembly required. Poster not included. Free UK mainland delivery.
Protection, Security and Presentation in One Compact Frame
- Tamper-proof key lock for secure public display: Once locked, the poster is safe from interference, removal and unauthorised replacement. In schools, corridors and public-facing locations, the lock ensures safety-critical notices stay exactly as installed.
- Perimeter weather seal for total climate defence: An internal rubber gasket runs the full perimeter of the hinged door, sealing out driving rain, condensation, road spray and dust. Standard outdoor frames let moisture in through the snap edges. This case locks it out entirely.
- Non-reflective acrylic front panel for clear visibility: The acrylic keeps the A3 graphic fully visible without the glare that standard clear covers create under fluorescent corridor lighting or direct sunlight on exterior walls.
- Silver anodised aluminium as the institutional standard: Silver is the finish schools, NHS trusts, councils and corporate estates specify for signage. The universal professional finish that looks appropriate on every building material and beside every entrance.
- Safety arm and internal clips for hands-free poster loading: Unlock the door and a built-in safety arm holds it open. Both hands free. Slide the A3 poster against the back panel, clip the edges, close and lock. Seconds per change. No disassembly. No tools beyond the key. One person updates every frame across an estate.
- Compact A3 format for tight wall spaces: A3 fits where A2 and A1 cannot: beside narrow doors, on pillars, in corridors and in the tight entrance recesses of older buildings.
Sectors Where the A3 Silver Lockable Case Sets the Standard
| Schools, Nurseries, Colleges | Term dates, safeguarding notices, exam timetables, open day promotions and community information displayed at school gates, corridor junctions and campus entrances where the weather seal and lock protect content outside staffed hours and over the holiday periods. |
| NHS Hospitals, GP Surgeries, Dental Clinics | Patient information, clinic hours, vaccination schedules, compliance notices and directional signage in corridors, waiting areas and building entrances where the tamper-proof lock prevents interference with the content. |
| Councils, Libraries, Public | Community notices, planning information, service updates and public health campaigns displayed on exterior walls and in shared entrance areas where staff cannot monitor the signage constantly. |
| Corporate Offices, Reception Areas | Visitor information, fire safety notices, building directories and branded welcome messaging in corridors and reception areas where the silver finish matches the professional, neutral aesthetic of corporate interiors. |
| Leisure Centres, Pools, Sports Clubs | Class timetables, membership offers, health and safety notices and event listings in corridors and entrance areas where the weatherproof seal handles the humidity that these environments generate. |
| Care Homes, Charities, Communities | Visitor policies, activity schedules, safeguarding information and fundraising updates displayed at entrances and in shared areas where content must remain protected from interference and weather throughout the full week. |
Complete Your Setup with an A3 Poster Print
This lockable A3 poster case is ideal for displaying notices, promotions and informational signage securely for long-term indoor and outdoor use. For a premium dark-finish alternative, the same lockable case is available in A3 satin black for branded retail, hospitality and premium venue exteriors where the darker finish matches the interior design.
Call us on 01279460460 or get in touch for volume orders or multi-site rollout planning.
The Displaysense SFLA3 is a silver anodised aluminium A3 lockable outdoor poster case with key lock, hinged door, internal rubber perimeter weather seal, non-reflective acrylic front panel, safety arm, internal edge clips and wall fixings included. A3 format (297 x 420mm). Visible area: 280 x 400mm. Overall: 370mm W x 490mm H x 30mm D. Designed for permanent indoor and outdoor wall mounting in schools, NHS hospitals, GP surgeries, dental clinics, councils, libraries, corporate offices, reception areas, leisure centres and public buildings. Weatherproof, tamper-proof and impact-resistant. Also available in A3 satin black for branded retail and hospitality, and in A2, A1 and A0 silver for larger wall spaces. Displaysense, UK display product specialists since 1978.
Description
The key lock is the feature that separates this poster case from every snap frame on the market. Snap frames are fast because anyone can open them: staff, visitors, students, patients and the public alike. This frame prioritises curated security. Once locked, the A3 poster inside is exclusively under the control of the designated keyholder. In schools, hospital corridors, council buildings and shared public spaces, the lock ensures that safety-critical notices, safeguarding information and compliance content stay exactly as installed until the authorised person decides to change them.
The internal rubber gasket running the full perimeter of the hinged door is what makes this a genuine outdoor poster case rather than an indoor frame bolted to an exterior wall. Standard snap frames rely on corner mitres and friction to keep moisture out, and they fail within weeks as temperature cycling warps the aluminium edges and lets driving rain, condensation and road spray reach the poster. This frame creates a continuous sealed barrier around the entire perimeter. The poster stays flat, dry and presentable through every season the British climate delivers without staff needing to check it after every storm. That operational advantage is the reason schools, NHS trusts and local authorities specify this case for outdoor notice boards.
The non-reflective acrylic front panel solves the visibility problem that standard clear covers create in two common environments: fluorescent-lit corridors and sun-facing exterior walls. In a school corridor under strip lighting, a standard cover turns into a mirror. On a south-facing wall in direct sunlight, the poster washes out completely. The non-reflective acrylic diffuses those light sources, keeping the A3 graphic readable at every angle and in every condition.
Silver is the finish that public-sector and institutional buyers specify. It is the universal professional standard that looks appropriate on every building material, in every corridor and beside every entrance without drawing attention to the hardware itself. In an NHS corridor, a school reception, a council building or a corporate office, the silver finish integrates with the existing signage and interior design scheme rather than introducing a colour that needs to be justified by a designer or a procurement team. That neutrality is why silver outsells every other finish in institutional settings across the UK.
What Ships in Your Pack
- 1 x A3 lockable outdoor poster case in silver anodised aluminium with key, safety arm and wall fixings
Outfitting Multiple Sites or a Public-Sector Estate?
We supply this lockable case to school estates, NHS trusts, local councils, leisure operators, corporate estates and charity networks across the UK. For multi-site orders our team can provide a tailored quote with coordinated delivery.
Call us on 01279460460 or send us your requirements and we will come back to you.
The Displaysense A3 lockable outdoor poster case in silver is a weatherproof, tamper-proof wall-mounted poster display with key lock, hinged door, internal rubber perimeter weather seal, non-reflective acrylic front panel, safety arm, internal edge clips and wall fixings included. A3 format (297 x 420mm). Visible area: 280 x 400mm. Overall: 370mm W x 490mm H x 30mm D. Designed for permanent indoor and outdoor wall mounting in schools, NHS hospitals, GP surgeries, dental clinics, councils, libraries, corporate offices, reception areas, leisure centres and public buildings. Also available in A3 satin black for branded retail and hospitality, and in A2, A1, A0 silver. Free UK delivery. Displaysense, UK display product specialists since 1978.
Specifications
Full specifications for the A3 lockable outdoor poster case in silver anodised aluminium. Key lock, internal rubber perimeter weather seal, non-reflective acrylic front panel and silver aluminium frame. Engineered for permanent wall mounting in schools, hospitals, councils and corporate environments.
| Specification | Detail | What This Means for You |
|---|---|---|
| Poster Insert Size | A3 (portrait) | The compact institutional signage format. Ideal for school gates, clinic entrances, corridors and tight wall spaces on pillars. |
| Visible Area | 280 x 400mm | Full A3 sheet accepted (297 x 420mm). Visible poster area through the acrylic panel with a narrow frame overlap at each edge. |
| Overall Dimensions | 370mm (W) x 490mm (H) x 30mm (D) | Slim 30mm depth sits flush to the wall. Compact enough for school corridors, clinic doorways, reception pillars and the tight entrance recesses of older buildings. |
| Finish | Silver anodised alloy | The universal institutional standard. Integrates with existing signage in schools, NHS sites, councils and corporate offices. Neutral and professional. |
| Frame Build | Aluminium extruded profile | Lightweight but strong construction engineered for years of indoor and outdoor exposure without warping, corroding or degrading. Permanent structural rigidity at this format. |
| Front Panel | Anti-glare | Non-reflective acrylic diffuses fluorescent corridor lighting and direct sunlight. Keeps the poster readable at every angle without glare or white-out. |
| Security Lock | Tamper-proof key lock with hinged door | Only the designated keyholder changes the poster. Prevents interference with safety-critical notices in schools, hospitals and shared public buildings. |
| Weather Seal | Perimeter rubber gasket | Industrial-grade gasket creates a continuous sealed barrier against driving rain, condensation, road spray and wind-blown dust around the entire perimeter of the door. |
| Loading | Safety arm holds door, internal clips | Built-in arm props the door open hands-free. Clip the poster flat against the back panel, close and lock. |
| Mounting | Fixings in the box | Screws and plugs supplied for standard masonry. No assembly required. Drill, fix and display. Once mounted, a permanent fixture. |
| Suitable Settings | Indoor and outdoor wall mount for schools, NHS, councils, corporate and leisure use | Designed for corridors, reception areas, entrance walls, school gates, clinic doorways and exterior notice board positions. |
| Also Available In | A3 satin black; A2, A1, A0 silver | Black for branded retail and hospitality exteriors. Larger silver formats for bigger wall spaces where greater visual impact from across the street is needed. |
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 This A3 Silver Lockable Poster Case
Q: Why lockable not snap frame?
A: Snap frames are fast because anyone can open them: staff, visitors, students and patients alike. This key-lock case prioritises security. Once locked, the A3 poster is exclusively under the control of the keyholder. In schools, hospital corridors and council buildings, the lock ensures safety notices and compliance content stay exactly as installed until the authorised person decides to update them. No interference. No unauthorised replacement.
Q: How do I change the poster inside it?
A: Unlock the door with the key. A built-in safety arm holds it open hands-free. Slide the A3 poster against the back panel and clip the edges with the internal clips to hold it in position. Close the door and lock. The entire change takes seconds and one person handles the full process without tools or assistance. The frame stays on the wall throughout.
Q: Is the weather seal truly waterproof?
A: The internal rubber gasket runs the full perimeter of the hinged door, creating a continuous sealed barrier against driving rain, condensation, road spray and wind-blown debris. Standard snap frames rely on corner mitres and begin leaking within weeks as temperature cycling warps the edges. This case keeps the poster flat, dry and presentable through every season without staff checking after storms.
Q: What makes the front panel non-reflective?
A: The acrylic is treated to diffuse light rather than reflecting it. Under fluorescent corridor lighting or on a south-facing exterior wall in direct sunlight, the poster stays readable without glare or the mirror effect that untreated covers produce.
Q: Why choose silver rather than black?
A: Silver is the universal institutional standard. Schools, NHS trusts, councils and corporate estates specify it because it integrates with existing signage without introducing a colour that needs design approval. Silver is neutral and professional. Black is a design statement for branded retail and hospitality. Both are available in A3 with the same lock and seal.
Q: Is A3 large enough for a school gate or a clinic?
A: A3 is the compact format that fits where larger cases cannot. At 370mm wide by 490mm tall, it sits comfortably on a standard pillar, beside a narrow entrance or in a corridor recess. For more visual impact, the same lockable case is available in A2, A1 and A0.
Q: Can I mount this on brick, stone, render or plasterboard?
A: Wall fixings are included for standard masonry surfaces. For plasterboard, use appropriate cavity fixings rated for the weight of the case. For specialist substrates such as glass, composite panels or lightweight cladding, consult a local fitter for the right anchor type. Once mounted, the frame is a permanent wall fixture.
Q: Is this suitable for an NHS corridor or a clinic?
A: Yes. This case is widely specified by NHS trusts for corridor and entrance signage. Patient information, clinic hours, vaccination schedules, visitor policies and compliance notices stay protected behind the locked door and sealed frame.
Q: Can schools use this for outdoor safeguarding notices?
A: Yes. The weather seal protects the poster from rain, condensation and debris. The lock prevents unauthorised removal. Safeguarding notices, term dates, open day promotions and community information stay intact at school gates and building entrances throughout the term and holiday period without staff needing to monitor the display.
Q: How long does the silver finish last?
A: The anodised aluminium does not peel, flake or fade in UV light. It is engineered for years of permanent indoor and outdoor exposure in the same wall location without any visible degradation of the surface finish.
Q: Does this need any assembly at all?
A: No. The case arrives fully assembled and ready to mount. Drill the wall, fix the plugs, screw the frame into position and display. No assembly of the case itself is required at any stage.
Q: Is this available in other sizes?
A: Yes. The same silver lockable poster case is available in A2, A1 and A0 for larger wall spaces and higher-impact promotional displays. All share the same key lock, rubber weather seal and non-reflective acrylic panel. A3 is also available in satin black for branded retail, hospitality and premium venue exteriors where a darker finish is preferred.
Knowledge Hub
Guides for Notice Display and Compliance Signage
A lockable poster case solves the security and weather problem. What you display inside it, where you mount it in the building and how you maintain the content over time determine whether it serves as effective communication or just another fixture people walk past. These guides cover the thinking behind professional institutional display.
A few reads worth your time:
- Noticeboard Buying Guide: How to Choose the Right Board for Your Space
- Choosing the Right Display Board: A Complete Guide for Offices, Schools and Events
- The Complete Paper Size Buying Guide
- How to Display Products and Keep Your Customers Safe
Downloads
Outdoor Lockable Aluminium Poster CaseA3 Lockable Anodised Aluminium Silver Poster Case with 45mm Frame Profile - Wall Fixings Included
Level Up Your Display – Add Now
Overview
Description
Specifications
Delivery & Returns
FAQs
Knowledge Hub
A3 Lockable Outdoor Poster Case in Silver Anodised Aluminium with Weather Seal
Every reception area, corridor and building entrance has a wall space that should be doing more. The fire safety notice. The visitor welcome. The treatment menu. The term dates. Right now it is probably pinned to a corkboard, taped to the glass or sitting in a snap frame that anyone can open and the weather will ruin within weeks. The SFLA3 replaces those compromises with a permanent, lockable, weatherproof A3 display that protects the poster inside and frames the message outside with the clean, professional authority of silver anodised aluminium. The silver finish is the universal institutional standard, chosen by schools, NHS trusts, councils and corporate estates.
A3 format (297mm x 420mm). Visible poster area: 280mm x 400mm. Overall frame dimensions: 370mm (W) x 490mm (H) x 30mm (D). Silver anodised aluminium construction with a durable finish that does not peel, flake or fade. Lockable hinged door with key. Internal rubber weather seal running the full perimeter. Non-reflective acrylic front panel with internal edge clips. Safety arm holds door open during poster changes. Wall fixings included. No assembly required. Poster not included. Free UK mainland delivery.
Protection, Security and Presentation in One Compact Frame
- Tamper-proof key lock for secure public display: Once locked, the poster is safe from interference, removal and unauthorised replacement. In schools, corridors and public-facing locations, the lock ensures safety-critical notices stay exactly as installed.
- Perimeter weather seal for total climate defence: An internal rubber gasket runs the full perimeter of the hinged door, sealing out driving rain, condensation, road spray and dust. Standard outdoor frames let moisture in through the snap edges. This case locks it out entirely.
- Non-reflective acrylic front panel for clear visibility: The acrylic keeps the A3 graphic fully visible without the glare that standard clear covers create under fluorescent corridor lighting or direct sunlight on exterior walls.
- Silver anodised aluminium as the institutional standard: Silver is the finish schools, NHS trusts, councils and corporate estates specify for signage. The universal professional finish that looks appropriate on every building material and beside every entrance.
- Safety arm and internal clips for hands-free poster loading: Unlock the door and a built-in safety arm holds it open. Both hands free. Slide the A3 poster against the back panel, clip the edges, close and lock. Seconds per change. No disassembly. No tools beyond the key. One person updates every frame across an estate.
- Compact A3 format for tight wall spaces: A3 fits where A2 and A1 cannot: beside narrow doors, on pillars, in corridors and in the tight entrance recesses of older buildings.
Sectors Where the A3 Silver Lockable Case Sets the Standard
| Schools, Nurseries, Colleges | Term dates, safeguarding notices, exam timetables, open day promotions and community information displayed at school gates, corridor junctions and campus entrances where the weather seal and lock protect content outside staffed hours and over the holiday periods. |
| NHS Hospitals, GP Surgeries, Dental Clinics | Patient information, clinic hours, vaccination schedules, compliance notices and directional signage in corridors, waiting areas and building entrances where the tamper-proof lock prevents interference with the content. |
| Councils, Libraries, Public | Community notices, planning information, service updates and public health campaigns displayed on exterior walls and in shared entrance areas where staff cannot monitor the signage constantly. |
| Corporate Offices, Reception Areas | Visitor information, fire safety notices, building directories and branded welcome messaging in corridors and reception areas where the silver finish matches the professional, neutral aesthetic of corporate interiors. |
| Leisure Centres, Pools, Sports Clubs | Class timetables, membership offers, health and safety notices and event listings in corridors and entrance areas where the weatherproof seal handles the humidity that these environments generate. |
| Care Homes, Charities, Communities | Visitor policies, activity schedules, safeguarding information and fundraising updates displayed at entrances and in shared areas where content must remain protected from interference and weather throughout the full week. |
Complete Your Setup with an A3 Poster Print
This lockable A3 poster case is ideal for displaying notices, promotions and informational signage securely for long-term indoor and outdoor use. For a premium dark-finish alternative, the same lockable case is available in A3 satin black for branded retail, hospitality and premium venue exteriors where the darker finish matches the interior design.
Call us on 01279460460 or get in touch for volume orders or multi-site rollout planning.
The Displaysense SFLA3 is a silver anodised aluminium A3 lockable outdoor poster case with key lock, hinged door, internal rubber perimeter weather seal, non-reflective acrylic front panel, safety arm, internal edge clips and wall fixings included. A3 format (297 x 420mm). Visible area: 280 x 400mm. Overall: 370mm W x 490mm H x 30mm D. Designed for permanent indoor and outdoor wall mounting in schools, NHS hospitals, GP surgeries, dental clinics, councils, libraries, corporate offices, reception areas, leisure centres and public buildings. Weatherproof, tamper-proof and impact-resistant. Also available in A3 satin black for branded retail and hospitality, and in A2, A1 and A0 silver for larger wall spaces. Displaysense, UK display product specialists since 1978.
The key lock is the feature that separates this poster case from every snap frame on the market. Snap frames are fast because anyone can open them: staff, visitors, students, patients and the public alike. This frame prioritises curated security. Once locked, the A3 poster inside is exclusively under the control of the designated keyholder. In schools, hospital corridors, council buildings and shared public spaces, the lock ensures that safety-critical notices, safeguarding information and compliance content stay exactly as installed until the authorised person decides to change them.
The internal rubber gasket running the full perimeter of the hinged door is what makes this a genuine outdoor poster case rather than an indoor frame bolted to an exterior wall. Standard snap frames rely on corner mitres and friction to keep moisture out, and they fail within weeks as temperature cycling warps the aluminium edges and lets driving rain, condensation and road spray reach the poster. This frame creates a continuous sealed barrier around the entire perimeter. The poster stays flat, dry and presentable through every season the British climate delivers without staff needing to check it after every storm. That operational advantage is the reason schools, NHS trusts and local authorities specify this case for outdoor notice boards.
The non-reflective acrylic front panel solves the visibility problem that standard clear covers create in two common environments: fluorescent-lit corridors and sun-facing exterior walls. In a school corridor under strip lighting, a standard cover turns into a mirror. On a south-facing wall in direct sunlight, the poster washes out completely. The non-reflective acrylic diffuses those light sources, keeping the A3 graphic readable at every angle and in every condition.
Silver is the finish that public-sector and institutional buyers specify. It is the universal professional standard that looks appropriate on every building material, in every corridor and beside every entrance without drawing attention to the hardware itself. In an NHS corridor, a school reception, a council building or a corporate office, the silver finish integrates with the existing signage and interior design scheme rather than introducing a colour that needs to be justified by a designer or a procurement team. That neutrality is why silver outsells every other finish in institutional settings across the UK.
What Ships in Your Pack
- 1 x A3 lockable outdoor poster case in silver anodised aluminium with key, safety arm and wall fixings
Outfitting Multiple Sites or a Public-Sector Estate?
We supply this lockable case to school estates, NHS trusts, local councils, leisure operators, corporate estates and charity networks across the UK. For multi-site orders our team can provide a tailored quote with coordinated delivery.
Call us on 01279460460 or send us your requirements and we will come back to you.
The Displaysense A3 lockable outdoor poster case in silver is a weatherproof, tamper-proof wall-mounted poster display with key lock, hinged door, internal rubber perimeter weather seal, non-reflective acrylic front panel, safety arm, internal edge clips and wall fixings included. A3 format (297 x 420mm). Visible area: 280 x 400mm. Overall: 370mm W x 490mm H x 30mm D. Designed for permanent indoor and outdoor wall mounting in schools, NHS hospitals, GP surgeries, dental clinics, councils, libraries, corporate offices, reception areas, leisure centres and public buildings. Also available in A3 satin black for branded retail and hospitality, and in A2, A1, A0 silver. Free UK delivery. Displaysense, UK display product specialists since 1978.
Full specifications for the A3 lockable outdoor poster case in silver anodised aluminium. Key lock, internal rubber perimeter weather seal, non-reflective acrylic front panel and silver aluminium frame. Engineered for permanent wall mounting in schools, hospitals, councils and corporate environments.
| Specification | Detail | What This Means for You |
|---|---|---|
| Poster Insert Size | A3 (portrait) | The compact institutional signage format. Ideal for school gates, clinic entrances, corridors and tight wall spaces on pillars. |
| Visible Area | 280 x 400mm | Full A3 sheet accepted (297 x 420mm). Visible poster area through the acrylic panel with a narrow frame overlap at each edge. |
| Overall Dimensions | 370mm (W) x 490mm (H) x 30mm (D) | Slim 30mm depth sits flush to the wall. Compact enough for school corridors, clinic doorways, reception pillars and the tight entrance recesses of older buildings. |
| Finish | Silver anodised alloy | The universal institutional standard. Integrates with existing signage in schools, NHS sites, councils and corporate offices. Neutral and professional. |
| Frame Build | Aluminium extruded profile | Lightweight but strong construction engineered for years of indoor and outdoor exposure without warping, corroding or degrading. Permanent structural rigidity at this format. |
| Front Panel | Anti-glare | Non-reflective acrylic diffuses fluorescent corridor lighting and direct sunlight. Keeps the poster readable at every angle without glare or white-out. |
| Security Lock | Tamper-proof key lock with hinged door | Only the designated keyholder changes the poster. Prevents interference with safety-critical notices in schools, hospitals and shared public buildings. |
| Weather Seal | Perimeter rubber gasket | Industrial-grade gasket creates a continuous sealed barrier against driving rain, condensation, road spray and wind-blown dust around the entire perimeter of the door. |
| Loading | Safety arm holds door, internal clips | Built-in arm props the door open hands-free. Clip the poster flat against the back panel, close and lock. |
| Mounting | Fixings in the box | Screws and plugs supplied for standard masonry. No assembly required. Drill, fix and display. Once mounted, a permanent fixture. |
| Suitable Settings | Indoor and outdoor wall mount for schools, NHS, councils, corporate and leisure use | Designed for corridors, reception areas, entrance walls, school gates, clinic doorways and exterior notice board positions. |
| Also Available In | A3 satin black; A2, A1, A0 silver | Black for branded retail and hospitality exteriors. Larger silver formats for bigger wall spaces where greater visual impact from across the street is needed. |
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 This A3 Silver Lockable Poster Case
Q: Why lockable not snap frame?
A: Snap frames are fast because anyone can open them: staff, visitors, students and patients alike. This key-lock case prioritises security. Once locked, the A3 poster is exclusively under the control of the keyholder. In schools, hospital corridors and council buildings, the lock ensures safety notices and compliance content stay exactly as installed until the authorised person decides to update them. No interference. No unauthorised replacement.
Q: How do I change the poster inside it?
A: Unlock the door with the key. A built-in safety arm holds it open hands-free. Slide the A3 poster against the back panel and clip the edges with the internal clips to hold it in position. Close the door and lock. The entire change takes seconds and one person handles the full process without tools or assistance. The frame stays on the wall throughout.
Q: Is the weather seal truly waterproof?
A: The internal rubber gasket runs the full perimeter of the hinged door, creating a continuous sealed barrier against driving rain, condensation, road spray and wind-blown debris. Standard snap frames rely on corner mitres and begin leaking within weeks as temperature cycling warps the edges. This case keeps the poster flat, dry and presentable through every season without staff checking after storms.
Q: What makes the front panel non-reflective?
A: The acrylic is treated to diffuse light rather than reflecting it. Under fluorescent corridor lighting or on a south-facing exterior wall in direct sunlight, the poster stays readable without glare or the mirror effect that untreated covers produce.
Q: Why choose silver rather than black?
A: Silver is the universal institutional standard. Schools, NHS trusts, councils and corporate estates specify it because it integrates with existing signage without introducing a colour that needs design approval. Silver is neutral and professional. Black is a design statement for branded retail and hospitality. Both are available in A3 with the same lock and seal.
Q: Is A3 large enough for a school gate or a clinic?
A: A3 is the compact format that fits where larger cases cannot. At 370mm wide by 490mm tall, it sits comfortably on a standard pillar, beside a narrow entrance or in a corridor recess. For more visual impact, the same lockable case is available in A2, A1 and A0.
Q: Can I mount this on brick, stone, render or plasterboard?
A: Wall fixings are included for standard masonry surfaces. For plasterboard, use appropriate cavity fixings rated for the weight of the case. For specialist substrates such as glass, composite panels or lightweight cladding, consult a local fitter for the right anchor type. Once mounted, the frame is a permanent wall fixture.
Q: Is this suitable for an NHS corridor or a clinic?
A: Yes. This case is widely specified by NHS trusts for corridor and entrance signage. Patient information, clinic hours, vaccination schedules, visitor policies and compliance notices stay protected behind the locked door and sealed frame.
Q: Can schools use this for outdoor safeguarding notices?
A: Yes. The weather seal protects the poster from rain, condensation and debris. The lock prevents unauthorised removal. Safeguarding notices, term dates, open day promotions and community information stay intact at school gates and building entrances throughout the term and holiday period without staff needing to monitor the display.
Q: How long does the silver finish last?
A: The anodised aluminium does not peel, flake or fade in UV light. It is engineered for years of permanent indoor and outdoor exposure in the same wall location without any visible degradation of the surface finish.
Q: Does this need any assembly at all?
A: No. The case arrives fully assembled and ready to mount. Drill the wall, fix the plugs, screw the frame into position and display. No assembly of the case itself is required at any stage.
Q: Is this available in other sizes?
A: Yes. The same silver lockable poster case is available in A2, A1 and A0 for larger wall spaces and higher-impact promotional displays. All share the same key lock, rubber weather seal and non-reflective acrylic panel. A3 is also available in satin black for branded retail, hospitality and premium venue exteriors where a darker finish is preferred.
Guides for Notice Display and Compliance Signage
A lockable poster case solves the security and weather problem. What you display inside it, where you mount it in the building and how you maintain the content over time determine whether it serves as effective communication or just another fixture people walk past. These guides cover the thinking behind professional institutional display.
A few reads worth your time:
- Noticeboard Buying Guide: How to Choose the Right Board for Your Space
- Choosing the Right Display Board: A Complete Guide for Offices, Schools and Events
- The Complete Paper Size Buying Guide
- How to Display Products and Keep Your Customers Safe
Downloads
Outdoor Lockable Aluminium Poster CaseOverview
A3 Lockable Outdoor Poster Case in Silver Anodised Aluminium with Weather Seal
Every reception area, corridor and building entrance has a wall space that should be doing more. The fire safety notice. The visitor welcome. The treatment menu. The term dates. Right now it is probably pinned to a corkboard, taped to the glass or sitting in a snap frame that anyone can open and the weather will ruin within weeks. The SFLA3 replaces those compromises with a permanent, lockable, weatherproof A3 display that protects the poster inside and frames the message outside with the clean, professional authority of silver anodised aluminium. The silver finish is the universal institutional standard, chosen by schools, NHS trusts, councils and corporate estates.
A3 format (297mm x 420mm). Visible poster area: 280mm x 400mm. Overall frame dimensions: 370mm (W) x 490mm (H) x 30mm (D). Silver anodised aluminium construction with a durable finish that does not peel, flake or fade. Lockable hinged door with key. Internal rubber weather seal running the full perimeter. Non-reflective acrylic front panel with internal edge clips. Safety arm holds door open during poster changes. Wall fixings included. No assembly required. Poster not included. Free UK mainland delivery.
Protection, Security and Presentation in One Compact Frame
- Tamper-proof key lock for secure public display: Once locked, the poster is safe from interference, removal and unauthorised replacement. In schools, corridors and public-facing locations, the lock ensures safety-critical notices stay exactly as installed.
- Perimeter weather seal for total climate defence: An internal rubber gasket runs the full perimeter of the hinged door, sealing out driving rain, condensation, road spray and dust. Standard outdoor frames let moisture in through the snap edges. This case locks it out entirely.
- Non-reflective acrylic front panel for clear visibility: The acrylic keeps the A3 graphic fully visible without the glare that standard clear covers create under fluorescent corridor lighting or direct sunlight on exterior walls.
- Silver anodised aluminium as the institutional standard: Silver is the finish schools, NHS trusts, councils and corporate estates specify for signage. The universal professional finish that looks appropriate on every building material and beside every entrance.
- Safety arm and internal clips for hands-free poster loading: Unlock the door and a built-in safety arm holds it open. Both hands free. Slide the A3 poster against the back panel, clip the edges, close and lock. Seconds per change. No disassembly. No tools beyond the key. One person updates every frame across an estate.
- Compact A3 format for tight wall spaces: A3 fits where A2 and A1 cannot: beside narrow doors, on pillars, in corridors and in the tight entrance recesses of older buildings.
Sectors Where the A3 Silver Lockable Case Sets the Standard
| Schools, Nurseries, Colleges | Term dates, safeguarding notices, exam timetables, open day promotions and community information displayed at school gates, corridor junctions and campus entrances where the weather seal and lock protect content outside staffed hours and over the holiday periods. |
| NHS Hospitals, GP Surgeries, Dental Clinics | Patient information, clinic hours, vaccination schedules, compliance notices and directional signage in corridors, waiting areas and building entrances where the tamper-proof lock prevents interference with the content. |
| Councils, Libraries, Public | Community notices, planning information, service updates and public health campaigns displayed on exterior walls and in shared entrance areas where staff cannot monitor the signage constantly. |
| Corporate Offices, Reception Areas | Visitor information, fire safety notices, building directories and branded welcome messaging in corridors and reception areas where the silver finish matches the professional, neutral aesthetic of corporate interiors. |
| Leisure Centres, Pools, Sports Clubs | Class timetables, membership offers, health and safety notices and event listings in corridors and entrance areas where the weatherproof seal handles the humidity that these environments generate. |
| Care Homes, Charities, Communities | Visitor policies, activity schedules, safeguarding information and fundraising updates displayed at entrances and in shared areas where content must remain protected from interference and weather throughout the full week. |
Complete Your Setup with an A3 Poster Print
This lockable A3 poster case is ideal for displaying notices, promotions and informational signage securely for long-term indoor and outdoor use. For a premium dark-finish alternative, the same lockable case is available in A3 satin black for branded retail, hospitality and premium venue exteriors where the darker finish matches the interior design.
Call us on 01279460460 or get in touch for volume orders or multi-site rollout planning.
The Displaysense SFLA3 is a silver anodised aluminium A3 lockable outdoor poster case with key lock, hinged door, internal rubber perimeter weather seal, non-reflective acrylic front panel, safety arm, internal edge clips and wall fixings included. A3 format (297 x 420mm). Visible area: 280 x 400mm. Overall: 370mm W x 490mm H x 30mm D. Designed for permanent indoor and outdoor wall mounting in schools, NHS hospitals, GP surgeries, dental clinics, councils, libraries, corporate offices, reception areas, leisure centres and public buildings. Weatherproof, tamper-proof and impact-resistant. Also available in A3 satin black for branded retail and hospitality, and in A2, A1 and A0 silver for larger wall spaces. Displaysense, UK display product specialists since 1978.
Description
The key lock is the feature that separates this poster case from every snap frame on the market. Snap frames are fast because anyone can open them: staff, visitors, students, patients and the public alike. This frame prioritises curated security. Once locked, the A3 poster inside is exclusively under the control of the designated keyholder. In schools, hospital corridors, council buildings and shared public spaces, the lock ensures that safety-critical notices, safeguarding information and compliance content stay exactly as installed until the authorised person decides to change them.
The internal rubber gasket running the full perimeter of the hinged door is what makes this a genuine outdoor poster case rather than an indoor frame bolted to an exterior wall. Standard snap frames rely on corner mitres and friction to keep moisture out, and they fail within weeks as temperature cycling warps the aluminium edges and lets driving rain, condensation and road spray reach the poster. This frame creates a continuous sealed barrier around the entire perimeter. The poster stays flat, dry and presentable through every season the British climate delivers without staff needing to check it after every storm. That operational advantage is the reason schools, NHS trusts and local authorities specify this case for outdoor notice boards.
The non-reflective acrylic front panel solves the visibility problem that standard clear covers create in two common environments: fluorescent-lit corridors and sun-facing exterior walls. In a school corridor under strip lighting, a standard cover turns into a mirror. On a south-facing wall in direct sunlight, the poster washes out completely. The non-reflective acrylic diffuses those light sources, keeping the A3 graphic readable at every angle and in every condition.
Silver is the finish that public-sector and institutional buyers specify. It is the universal professional standard that looks appropriate on every building material, in every corridor and beside every entrance without drawing attention to the hardware itself. In an NHS corridor, a school reception, a council building or a corporate office, the silver finish integrates with the existing signage and interior design scheme rather than introducing a colour that needs to be justified by a designer or a procurement team. That neutrality is why silver outsells every other finish in institutional settings across the UK.
What Ships in Your Pack
- 1 x A3 lockable outdoor poster case in silver anodised aluminium with key, safety arm and wall fixings
Outfitting Multiple Sites or a Public-Sector Estate?
We supply this lockable case to school estates, NHS trusts, local councils, leisure operators, corporate estates and charity networks across the UK. For multi-site orders our team can provide a tailored quote with coordinated delivery.
Call us on 01279460460 or send us your requirements and we will come back to you.
The Displaysense A3 lockable outdoor poster case in silver is a weatherproof, tamper-proof wall-mounted poster display with key lock, hinged door, internal rubber perimeter weather seal, non-reflective acrylic front panel, safety arm, internal edge clips and wall fixings included. A3 format (297 x 420mm). Visible area: 280 x 400mm. Overall: 370mm W x 490mm H x 30mm D. Designed for permanent indoor and outdoor wall mounting in schools, NHS hospitals, GP surgeries, dental clinics, councils, libraries, corporate offices, reception areas, leisure centres and public buildings. Also available in A3 satin black for branded retail and hospitality, and in A2, A1, A0 silver. Free UK delivery. Displaysense, UK display product specialists since 1978.
Specifications
Full specifications for the A3 lockable outdoor poster case in silver anodised aluminium. Key lock, internal rubber perimeter weather seal, non-reflective acrylic front panel and silver aluminium frame. Engineered for permanent wall mounting in schools, hospitals, councils and corporate environments.
| Specification | Detail | What This Means for You |
|---|---|---|
| Poster Insert Size | A3 (portrait) | The compact institutional signage format. Ideal for school gates, clinic entrances, corridors and tight wall spaces on pillars. |
| Visible Area | 280 x 400mm | Full A3 sheet accepted (297 x 420mm). Visible poster area through the acrylic panel with a narrow frame overlap at each edge. |
| Overall Dimensions | 370mm (W) x 490mm (H) x 30mm (D) | Slim 30mm depth sits flush to the wall. Compact enough for school corridors, clinic doorways, reception pillars and the tight entrance recesses of older buildings. |
| Finish | Silver anodised alloy | The universal institutional standard. Integrates with existing signage in schools, NHS sites, councils and corporate offices. Neutral and professional. |
| Frame Build | Aluminium extruded profile | Lightweight but strong construction engineered for years of indoor and outdoor exposure without warping, corroding or degrading. Permanent structural rigidity at this format. |
| Front Panel | Anti-glare | Non-reflective acrylic diffuses fluorescent corridor lighting and direct sunlight. Keeps the poster readable at every angle without glare or white-out. |
| Security Lock | Tamper-proof key lock with hinged door | Only the designated keyholder changes the poster. Prevents interference with safety-critical notices in schools, hospitals and shared public buildings. |
| Weather Seal | Perimeter rubber gasket | Industrial-grade gasket creates a continuous sealed barrier against driving rain, condensation, road spray and wind-blown dust around the entire perimeter of the door. |
| Loading | Safety arm holds door, internal clips | Built-in arm props the door open hands-free. Clip the poster flat against the back panel, close and lock. |
| Mounting | Fixings in the box | Screws and plugs supplied for standard masonry. No assembly required. Drill, fix and display. Once mounted, a permanent fixture. |
| Suitable Settings | Indoor and outdoor wall mount for schools, NHS, councils, corporate and leisure use | Designed for corridors, reception areas, entrance walls, school gates, clinic doorways and exterior notice board positions. |
| Also Available In | A3 satin black; A2, A1, A0 silver | Black for branded retail and hospitality exteriors. Larger silver formats for bigger wall spaces where greater visual impact from across the street is needed. |
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 This A3 Silver Lockable Poster Case
Q: Why lockable not snap frame?
A: Snap frames are fast because anyone can open them: staff, visitors, students and patients alike. This key-lock case prioritises security. Once locked, the A3 poster is exclusively under the control of the keyholder. In schools, hospital corridors and council buildings, the lock ensures safety notices and compliance content stay exactly as installed until the authorised person decides to update them. No interference. No unauthorised replacement.
Q: How do I change the poster inside it?
A: Unlock the door with the key. A built-in safety arm holds it open hands-free. Slide the A3 poster against the back panel and clip the edges with the internal clips to hold it in position. Close the door and lock. The entire change takes seconds and one person handles the full process without tools or assistance. The frame stays on the wall throughout.
Q: Is the weather seal truly waterproof?
A: The internal rubber gasket runs the full perimeter of the hinged door, creating a continuous sealed barrier against driving rain, condensation, road spray and wind-blown debris. Standard snap frames rely on corner mitres and begin leaking within weeks as temperature cycling warps the edges. This case keeps the poster flat, dry and presentable through every season without staff checking after storms.
Q: What makes the front panel non-reflective?
A: The acrylic is treated to diffuse light rather than reflecting it. Under fluorescent corridor lighting or on a south-facing exterior wall in direct sunlight, the poster stays readable without glare or the mirror effect that untreated covers produce.
Q: Why choose silver rather than black?
A: Silver is the universal institutional standard. Schools, NHS trusts, councils and corporate estates specify it because it integrates with existing signage without introducing a colour that needs design approval. Silver is neutral and professional. Black is a design statement for branded retail and hospitality. Both are available in A3 with the same lock and seal.
Q: Is A3 large enough for a school gate or a clinic?
A: A3 is the compact format that fits where larger cases cannot. At 370mm wide by 490mm tall, it sits comfortably on a standard pillar, beside a narrow entrance or in a corridor recess. For more visual impact, the same lockable case is available in A2, A1 and A0.
Q: Can I mount this on brick, stone, render or plasterboard?
A: Wall fixings are included for standard masonry surfaces. For plasterboard, use appropriate cavity fixings rated for the weight of the case. For specialist substrates such as glass, composite panels or lightweight cladding, consult a local fitter for the right anchor type. Once mounted, the frame is a permanent wall fixture.
Q: Is this suitable for an NHS corridor or a clinic?
A: Yes. This case is widely specified by NHS trusts for corridor and entrance signage. Patient information, clinic hours, vaccination schedules, visitor policies and compliance notices stay protected behind the locked door and sealed frame.
Q: Can schools use this for outdoor safeguarding notices?
A: Yes. The weather seal protects the poster from rain, condensation and debris. The lock prevents unauthorised removal. Safeguarding notices, term dates, open day promotions and community information stay intact at school gates and building entrances throughout the term and holiday period without staff needing to monitor the display.
Q: How long does the silver finish last?
A: The anodised aluminium does not peel, flake or fade in UV light. It is engineered for years of permanent indoor and outdoor exposure in the same wall location without any visible degradation of the surface finish.
Q: Does this need any assembly at all?
A: No. The case arrives fully assembled and ready to mount. Drill the wall, fix the plugs, screw the frame into position and display. No assembly of the case itself is required at any stage.
Q: Is this available in other sizes?
A: Yes. The same silver lockable poster case is available in A2, A1 and A0 for larger wall spaces and higher-impact promotional displays. All share the same key lock, rubber weather seal and non-reflective acrylic panel. A3 is also available in satin black for branded retail, hospitality and premium venue exteriors where a darker finish is preferred.
Knowledge Hub
Guides for Notice Display and Compliance Signage
A lockable poster case solves the security and weather problem. What you display inside it, where you mount it in the building and how you maintain the content over time determine whether it serves as effective communication or just another fixture people walk past. These guides cover the thinking behind professional institutional display.
A few reads worth your time:
- Noticeboard Buying Guide: How to Choose the Right Board for Your Space
- Choosing the Right Display Board: A Complete Guide for Offices, Schools and Events
- The Complete Paper Size Buying Guide
- How to Display Products and Keep Your Customers Safe
