A3 Snap Frames for Posters & Signage

Snap Frames

A4 Snap Frames

A2 Snap Frames

A1 Snap Frames

A0 Snap Frames

Lockable Snap Frames & Poster Cases

A3 Snap Frames:
High Impact Poster Display

A3 snap frames hold standard A3 paper (297x420mm) in a spring-loaded anodised aluminium 25mm profile with four edges that open by hand for front-loading content changes without removing the frame from the wall. UV anti-glare PVC cover sheet included. Portrait or landscape mounting. Single-person installation and content changes. A3 is the largest size produced by many office A3 printers, allowing in-house printing without a specialist print service. Lockable tamperproof versions available.

A3 snap frames strike the practical balance between A4 and A2 — large enough for clear visibility from 2 to 3 metres in corridor and restaurant settings, yet compact enough to fit wall spaces where A2 would be too large. A3 is also the largest size many businesses can print in-house on their office A3 printer, making it the most popular mid-format snap frame for mixed-use environments.

Our most popular A3 snap frames include the A3 silver snap frame for offices, schools, and healthcare settings, and the A3 black snap frame for cafes, restaurants, and modern retail. For outdoor wall positions, see our lockable outdoor poster cases.

297 x 420mm
A3 Standard

Why Choose Displaysense A3 Snap Frames

The Largest Size Most Offices Can Print In-House

Many businesses own an office A3 printer or have access to one. A3 is the largest size this equipment can produce — making A3 snap frames the highest-impact display format that remains fully in-house printable without a print shop, specialist equipment, or minimum order quantity. Update the content as frequently as needed at zero per-change cost.

Visible from 2 to 3 Metres

A4 snap frames suit close reading at under 1.5 metres. A3 provides the step up in size needed for wall-mounted notices that must be read from the far side of a corridor, the entrance to a restaurant, or across a waiting room. The same content in A4 would require approaching the frame; in A3 it is legible from a comfortable standing distance.

UV Anti-Glare Cover Included

Every A3 snap frame includes a UV-stable anti-glare PVC cover sheet. At A3 size, frames are often positioned on corridor walls under overhead fluorescent lighting where standard acrylic creates reflections. The anti-glare surface eliminates these reflections, ensuring the poster content remains clearly readable at the typical 2 to 3 metre viewing distance for A3 installations.

Fits Corridor and Room Wall Spaces

A3 (420mm tall in portrait) fits between a standard dado rail and ceiling height on most UK commercial corridor walls where A2 (594mm tall in portrait) would not. This makes A3 the practical maximum frame size for many retrofitted office, NHS, and school corridor installations without requiring architectural changes to wall panel heights.

Portrait and Landscape at A3

A3 snap frames mount in portrait (420mm tall, 297mm wide) or landscape (297mm tall, 420mm wide) orientation. A3 landscape in particular suits wide corridor walls where portrait would be too tall and A4 landscape too small — providing the ideal intermediate footprint for directional and menu board display without exceeding corridor wall panel boundaries.

Lockable for Public and High-Traffic Spaces

For public toilets, lifts, stairwells, and busy corridors where unauthorised poster removal is a concern, our lockable A3 snap frames require an Allen key to access the insert. The lockable frame uses the same aluminium profile and UV cover as the standard frame — there is no visible difference to the viewer, only to anyone attempting to tamper with the content.

What Is A3 Used For?

The In-House Printable Mid-Format Standard

A3 is the right choice when A4 is too small to read at the viewing distance, but A2 is too large for the available wall space or the business does not have access to A2 printing. The most common A3 applications are restaurant wall menus, corridor event and information notices, meeting room and office directional boards, retail counter promotions, and door display where A4 portrait is too small but A2 portrait will not fit the door panel.

For Restaurant Menus and Bar Display

Our A3 black snap frame in portrait is the standard for wall-mounted restaurant menus visible from a table 2 to 3 metres away. A3 provides enough room for a full menu section in a legible font size at this distance, printed in-house on any office A3 printer. Update the menu without printing costs beyond standard office paper and ink.

For Office Corridors and Event Notices

Our A3 silver snap frame in portrait suits corridor information notices, weekly event listings, and departmental announcements in offices, schools, and healthcare buildings. A3 is large enough to read from across a corridor without requiring approach, and fits standard corridor wall panel heights where A2 would be too tall.

For Retail Counter and POS Promotions

A3 landscape suits retail counter promotional display where A4 landscape is too small to convey the key message in a comfortable font size, and A2 is too large for the counter position. Our A3 black snap frame in landscape is commonly used for featured product promotions and seasonal campaign notices at counter level.

Quality You Can Trust:
The Displaysense Advantage

Displaysense is a trusted UK supplier with nearly 50 years of experience. Our A3 snap frames use premium springs that retain their tension through thousands of opening and closing cycles, and anodised aluminium profiles that resist scratching and corrosion in high-traffic commercial environments. From a single frame for a reception desk to bulk orders for a nationwide retail or school campaign, we supply the same quality at every quantity.

For the full snap frame range from A5 to A0, see our complete snap frames collection. Replacement A3 PVC cover sheets are available separately when originals become scratched.

297

x 420mm A3 Size

25mm

Standard Profile

Anti-Glare Cover Included

45+

Years in Business

How to Choose

What is A3 paper size in mm and cm?

A3 paper is 297 x 420mm (29.7 x 42.0cm). It is double the size of A4 (210x297mm) and half the size of A2 (420x594mm). A3 is the ISO 216 standard produced by office A3 printers, professional print shops, and wide-format services. Many businesses own or have office access to an A3 printer, making A3 the largest size that remains fully in-house printable for most UK commercial environments. Our A3 snap frames accept any A3 print without trimming.

What is the difference between A3 and A4 snap frames?

A4 (210x297mm) is the size produced by every standard office printer and suits close reading positions at 0.5 to 1.5 metres: counter notices, table menus, door signs. A3 (297x420mm) is double the size and suits positions where the content needs to be visible from 2 to 3 metres: corridor information boards, restaurant wall menus, and event notices where A4 text is too small to read comfortably without approaching the frame. If you have an A3 printer in-house, A3 can be printed without a print shop.

What is the difference between A3 and A2 snap frames?

A3 (297x420mm) is half the size of A2 (420x594mm). A3 suits walls where A2 would not physically fit — for example, between a dado rail and ceiling in a standard UK commercial corridor, or within the glazed panel of a door. A3 suits reading distances of 2 to 3 metres; A2 suits distances of 3 metres and beyond. A3 can be printed in-house on an office A3 printer. A2 requires a specialist printer or print shop.

Are A3 snap frames suitable for outdoor use?

Standard A3 snap frames are for indoor use only. For outdoor wall-mounted A3 display, use our lockable outdoor poster cases with rubber weatherproof gasket seals, cylinder locks, and vandal-resistant polycarbonate glazing. Common outdoor A3 applications include restaurant menus on building exteriors, pub event boards on external walls, and public information notices on building facades.

Ready to Buy

How much of the poster does the A3 frame profile cover?

The 25mm frame profile overlaps the edge of your A3 poster by approximately 10mm on each side. When designing or printing A3 content, keep all critical text and graphics at least 15mm in from the edge of the page to ensure nothing falls behind the frame. In any word processor or design application, set a 15mm margin from the page edge and your content will remain fully visible in the frame.

Do fixings come with A3 snap frames?

Yes. All A3 snap frames include wall plugs and screws. Open the snap edges to reveal the pre-drilled fixing holes hidden beneath the profile, mark the wall, drill, and fix. The holes are concealed when the frame is closed. A3 is a comfortable single-person installation size. For smooth surfaces such as glazed tiles or plaster without drilling, strong adhesive tape is also practical at A3's lighter frame weight.

Do you offer bulk pricing on A3 snap frames?

Yes. We offer volume discounts for school building refurbishments, retail chain rollouts, restaurant group fit-outs, NHS facilities, and multi-site organisations ordering A3 frames in quantity. Purchase orders accepted from registered businesses and public sector organisations with 30-day credit terms. Contact our team for a consolidated quote covering A3 in multiple finishes in a single order.