An A1 frame is one of the most popular large-format choices for anyone who wants to make a real statement on a wall — whether that’s a piece of art, a favourite photograph, a film poster, or a treasured print from a special occasion. At 594 x 841 mm (23.4 x 33.1 inches), the A1 size sits right in the sweet spot between “noticeable” and “overwhelming,” which is exactly why it’s become a go-to choice for galleries, home offices, living rooms and hallways alike.
If you’ve never bought a large-format frame before, the sizing, material and mounting choices can feel more complicated than they need to be. This guide walks through everything you need to know before choosing an A1 frame, from exact dimensions to the best materials, finishes, and placement ideas for your space.
What Exactly Is A1 Size?
The “A” series of paper and print sizes originates from the ISO 216 international paper size standard, which is used across the UK, Europe and most of the world (the US and Canada use a different system based on inches). Each size in the series is exactly half the size of the one above it, which is why A1 is half of A0 and double the size of A2.
In practical terms, an A1 frame measures:
- 594 mm x 841 mm in metric
- 23.4 in x 33.1 in in imperial
This makes it noticeably bigger than the more common A2 or A3 sizes, but still small enough to be hung by one person without needing scaffolding. It’s a favourite among interior designers precisely because it’s large enough to anchor a wall on its own, without requiring a full gallery wall of smaller prints.
Why Choose an A1 Frame Over Other Sizes?
Choosing the right frame size is about more than the print you already have — it’s about the visual weight you want on your wall. Here’s how A1 compares to its closest neighbours:
A1 vs A2: A1 is roughly 41% larger by area than A2, making it a better choice for statement pieces, feature walls, or spaces with high ceilings.
A1 vs A0: A0 is the largest standard size and can dominate a room. A1 offers a similar “wow factor” while remaining easier to source ready-made frames for and easier to hang safely.
A1 vs custom sizes: Because A1 is a standard size, framing it is significantly cheaper and faster than commissioning a bespoke frame, and replacement mounts, mats and glass are widely available.
For most homes, an A1 frame hits the ideal balance: big enough to be a focal point, but not so large that it needs specialist installation.
What Can You Put in an A1 Frame?
A1 frames are versatile enough to suit almost any type of print or artwork, including:
- Film and music posters — many officially licensed and vintage posters are printed at A1 size specifically because of its popularity.
- Art prints and illustrations — from botanical prints to abstract art, A1 gives fine detail room to breathe.
- Photography — enlarged family photos, landscape shots or wedding photography look striking at this scale.
- Maps and typographic prints — city maps, star charts and word art are commonly sold at A1.
- Children’s artwork and school projects — A1 is a popular size for framing larger school artwork or certificates.
- Event and exhibition prints — museums and galleries frequently sell prints from exhibitions in A1 size.
Because A1 is such a standard size, you’ll find a huge range of ready-to-frame prints available online and in shops, which makes shopping for content to fill your frame much easier than with a non-standard size.
Materials: Wood, Metal or Composite?
The frame material affects both the look of your finished piece and how it holds up over time.
Wood Frames
Wood is the classic choice for A1 frames, offering warmth and texture that suits both traditional and contemporary interiors. Oak, walnut and painted wood finishes are especially popular for large-format prints because the grain and colour variation add depth without competing with the artwork itself.
Metal (Aluminium) Frames
Aluminium frames are lightweight yet strong, making them a smart pick for A1 sizes where weight becomes more of a factor. They tend to have a slimmer profile than wood, which works well for modern, minimalist spaces, gallery walls, or photography prints where you want the frame to disappear and let the image do the talking.
Composite and MDF Frames
Budget-friendly composite frames can still look premium when finished well, and are a practical option if you’re framing multiple large prints at once — for example, across a gallery wall or in a rental property where cost matters more than heirloom quality.
Glazing Options: Glass vs Acrylic
At A1 size, the glazing (the clear covering over your print) matters more than it does for smaller frames, both for weight and for image protection.
Standard glass is affordable and widely available but adds noticeable weight at this size, which is worth considering for hanging hardware.
Acrylic (perspex) is significantly lighter than glass, shatter-resistant, and a safer option for A1 frames destined for hallways, stairwells, or homes with children — all places where a large glass frame could pose a risk if knocked.
UV-protective glazing helps prevent fading, which is particularly important for A1 prints that are often displayed in bright, well-lit rooms where they act as a focal point.
If your A1 frame is going somewhere with direct sunlight, UV-protective glazing is worth the small extra cost — large prints are expensive and time-consuming to replace once they’ve faded.
Mounting and Matting for A1 Prints
A mount (or mat) is the border of card between your print and the frame’s inner edge, and it plays a bigger role at A1 size than people often expect.
A wide mount (typically 5-10 cm) gives large prints breathing room and makes them feel more gallery-like, especially in living rooms and home offices.
No mount, frame-to-edge styling suits bold photography or posters where you want maximum visual impact and minimal white space.
Coloured or textured mounts can complement a print’s colour palette, though neutral white or off-white mounts remain the safest choice for resale value and long-term versatility if you plan to change the artwork later.
Where to Hang an A1 Frame
Because of its size, an A1 frame works best as a focal point rather than being lost among smaller pieces. Popular placements include:
Above a sofa or sideboard, centred and hung so the middle of the frame sits at eye level (roughly 145-152 cm from the floor to the centre of the frame).
In a hallway or stairwell, where a single striking A1 print can transform an otherwise plain transitional space.
In a home office, where a large map, motivational print or piece of art can anchor the room without cluttering the desk area.
As the centrepiece of a gallery wall, surrounded by smaller A2, A3 or A4 frames for a curated, layered look.
A good rule of thumb: leave roughly 15-20 cm of breathing room between an A1 frame and any furniture beneath it, and slightly more if it’s flanked by other framed pieces.
Hanging Tips for Large Frames
A1 frames are heavier than standard picture frames, so it’s worth taking a few extra precautions:
- Use two hanging points rather than one, spaced evenly, to prevent the frame from tilting over time.
- Choose wall fixings rated for the frame’s actual weight, including the glazing — a wood-and-glass A1 frame can weigh several kilograms.
- For plasterboard walls, use proper wall anchors or locate a stud rather than relying on a single picture hook.
- Check the frame is level using a spirit level rather than eyeballing it, since any tilt is far more noticeable at this scale than with a small frame.
Caring for Your A1 Frame
Large frames collect dust just as readily as small ones, but a few habits keep them looking their best:
- Dust the frame and glazing regularly with a soft, dry cloth to avoid scratching.
- Keep prints out of direct, prolonged sunlight where possible, even with UV-protective glazing.
- Check hanging hardware periodically, particularly in older homes, since weight can gradually loosen fixings over time.
- Avoid hanging large framed pieces above radiators or heat sources, as temperature fluctuations can warp both the print and the frame.
Frequently Asked Questions
What size in inches is an A1 frame? An A1 frame measures approximately 23.4 x 33.1 inches, or 594 x 841 mm.
Is A1 bigger than A2? Yes. A1 is exactly double the area of A2, making it noticeably more prominent on a wall.
Can one person hang an A1 frame safely? Generally yes, provided the correct wall fixings are used and the frame is lifted and positioned carefully — it’s the fixings, not the lifting, that need the most attention at this size.
Do A1 frames come ready-made? Yes, A1 is one of the most common standard sizes, so ready-made frames in a wide range of materials and finishes are widely available, avoiding the cost and wait time of custom framing.
Final Thoughts
An A1 frame offers one of the best ways to make a genuine style statement without moving into oversized, hard-to-handle territory. Whether you’re framing a cherished photograph, a gallery print, or a poster with sentimental value, getting the size, material, glazing and mount right will make sure the finished piece looks as good in ten years as it does on the day you hang it.
If you’re ready to find the right frame for your space, you can browse our range of A1 frame options, available in a variety of finishes to suit any room. For more frame sizes, styles and inspiration, visit PhotoFramed.