Photo frame size guide

Finding the perfect frame shouldn't feel like a guessing game. From tiny 6x4" snapshots on your bedside table to statement A2 posters on your living room wall, our quick guide makes it easy to match your prints to the right frame size every single time. Turn your favourite memories and artwork into a flawless home display without any of the stress.

How to measure a photo or print to choose the right frame?

To measure your photo or print accurately for a frame, follow the below simple steps:

1. Use a firm tape measure or ruler to gauge the exact height and width of your print from edge to edge. Remember to note down the dimensions in both inches and centimetres, as frames are sold in both formats across retailers.

2. Decide whether you want a mount around your image. If you do, look for a larger frame that specifies its picture size or mat opening. For example, an 11x14” frame with an 8x10” mount fits an 8x10” print perfectly. Otherwise, match your exact print measurements to the frame size.

3. Frames have a small internal lip that covers roughly 2-3mm of the print's outer edges. Keep critical text and signatures away from the absolute edge of the paper to ensure they remain visible.

Considerations when buying a photo frame

When finalising a photo frame, it’s important to keep a few things in mind to give your image the spotlight it deserves. Thick borders on picture frames mean less of the photo will be visible within the frame because the wider inner lip covers up more of the paper's edges. To prevent critical details from being cut off, you may need to go up a frame size and use an internal card mount to accommodate as much of the print as possible. For help choosing the perfect fit for your artwork, please see our sizing chart below.

Disclaimer: the above chart is for reference only and points to the internal dimensions of a frame, the size of your artwork or photo that fits inside the frame. External sizing may vary from product to product. 

A2 photo frame size

An A2 frame fits large posters and prints measuring 42 x 59 cm. Because this size is quite big and heavy, look for a lightweight frame so it’s easier to hang. If you don't want the frame's inner lip to cover any of your picture's edges, buy a larger A1 frame that comes with an A2 cardboard border inside. 

A3 photo frame size

An A3 frame works for medium-sized prints and posters measuring 30 x 42 cm, which is exactly double the size of standard A4 printer paper. It’s big enough for creating a focal point on a living room or bedroom wall without completely taking over the space.

A4 photo frame size

An A4 frame is an ideal match for standard document and certificate sizes measuring 21 x 30 cm, making it a popular size for home offices and gallery walls. Because it’s highly versatile, lightweight and compact, it can easily be hung with damage-free adhesive strips or stood up on a desk.

A5 photo frame size

Small prints, postcards and invitations measuring 15 x 21 cm can fit within an A5 frame, which is exactly half the size of standard A4 paper. Its compact size works for dressing up bedside tables, shelves or small, tight gaps on a gallery wall. If your photo fills the paper completely, look for a frame without a cardboard mount, or step up to an A4 frame with an A5 mount to add a more spacious, elegant border.

Choosing the right frame

Once you’ve nailed down your measurements, you can decide whether your frame will hang proudly on the wall or sit comfortably on a shelf or tabletop. From there, it’s all about picking the right look to complement your space.

• Colour: black and white frames are timeless classics that effortlessly draw focus straight to your artwork. If you want to add a touch of elegance, gold and silver-toned frames bring a metallic warmth that catches the light on shelves or mantels. For a softer, more organic feel, opt for natural wood frames like oak, walnut and pine.

• Style and shape: the traditional square and rectangle frames offer a crisp, straight-edge look that fits into any standard layout or gallery wall grid. If you want something a bit trendier, soft arched frames feature a curved top border that breaks up harsh wall lines and gives portraits a modern edge.

• Texture and finish: a smooth, sleek finish delivers a clean, contemporary aesthetic, letting modern graphic prints shine. If you prefer a vintage or gallery-style charm, beaded and ornate frames feature subtle ridges, small, raised dots or intricate carving along the edges to add instant character.

FAQs

What size frame should I get for an 8x10 picture?

• Buy an 8x10" frame. This way, the picture will fill the whole space right up to the edge. Alternatively, go for an 11x14" frame which comes with an 8x10" mount (that's the cardboard border inside) for that chic, gallery look.

How to choose the best frame for a picture?

• When selecting a frame start by checking your walls. If you’re renting and using hooks, lightweight styles are your best option. Then, match your photo’s vibe with the photo frame you pick. A modern, coloured print can be complemented with a thin black or white frame, while a vintage photo set against a metallic gold-tone frame brings out its nostalgic charm. For prints that are super busy, family photos and group shots, choose a minimalist frame so that the focus remains on your memories. 

Is it better to have a picture frame too big or too small?

• When in doubt, go big! It’s super easy to fit a smaller photo into a bigger frame. Just use a mount to fill the empty space. This also gives your print that elevated, intentional appeal.

What are the most common UK picture frame sizes?

• Some of the most common picture frame sizes in the UK are 6x4” and 7x5” for standard snapshots, school photos and portraits. Certificates, small art prints and wall art is usually displayed in A3 or A4-sized frames.

What are some common photo framing mistakes?

To keep your gallery wall looking top tier, avoid these slip-ups:

1. The floating photo: using a big frame for a small photo without a mount looks a bit messy.

2. Ignoring the glass reflection: hanging a photo frame right opposite a bright window will lead to a strong glare.

3. Squeezing it in: forcing a thick print into a frame that's too shallow, which bends the backing clips.

4. Hanging them too high: hanging frames way too close to the ceiling. Aim for eye level instead.

Is a standard photo size 4x6 or 5x7?

• Both, 4x6” and 5x7”, are standard sizes but they serve different purposes based on the shape of your image. A 4x6” photo frame matches the exact size of most camera sensors meaning your phone or digital camera photos will fit perfectly without any cropping. If you want a slightly larger, more intentional display piece, 5x7” frames are a popular choice to display your photos on desks, mantels or shelves.

What's the most popular photo frame size?

• The most popular photo frame size depends on where you are using it. For tables, shelves and desks, the 6x4” frame is a firm favourite. Whereas the A4-sized frames are universally used for framing art prints and photos on your wall.