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Poster frame sizes: comparisons, shapes and materials

The best way to preserve and protect your poster is with a frame. As poster frames come in many different sizes, you will need to ensure you use the right one.

This guide will show you the different sizes available, the materials used to make frames, and what your posters might look like on your wall.

In this guide:

What are the standard sizes of poster frames?

When deciding on a poster frame, you will need to know what size poster you have, as modern poster frames are categorised by the poster they fit.

While posters come in a wide range of sizes, in this section we look at the most common types:

  • Mini
  • Maxi
  • Alternative frame sizes

Note: The sizes stated on GB posters is the internal sizes, meaning that the size shown is the print/poster size that fits perfectly inside the frame. For example, if you purchase a 40x50 poster/print, you can simply buy the 40x50 size frame.

mini poster

Mini posters

Small and elegant with a size of 40 cm x 50 cm. Mini posters take up just a fraction of wall space, which is perfect if you’re wanting to hang a number of frames or you simply don’t want to lose a large part of your wall to a poster.

GB Posters offers a wide variety of mini posters in categories such as music, film, TV, gaming, sport, photography and more.

Click here to view our range of mini posters.

Click here to view mini poster frames.

maxi poster

Maxi posters

Maxi posters are the most common (and popular) type of poster. If you’ve ever purchased a poster, it will likely have been maxi sized. They measure 61 cm x 91.5 cm, which means they take up a reasonable amount of wall space.

Although they are similar to standard movie poster size, they suit most other categories, like music, gaming or sport.

Click here to view our range of maxi posters

Click here to view maxi poster frames.

alternative frame size

Alternative frame sizes

GB Posters also stocks frames in other non-standard sizes. These frames aren’t used for posters but more likely images (prints), certificates and vinyl covers. These sizes include:

Frame size comparison

Use the illustration below to see what your chosen poster frame might look like on your wall. Please note these are just estimations and may appear different when fitted.

frame size comparison

Frame shapes

Standard posters are rectangular and designed to be in the portrait position. However, other frames are available depending on your needs.

Portrait or landscape

All frames from GB Posters can be hung either in portrait or landscape, and have two hooking mechanisms attached to the back—one for each position.

Although some of our posters are landscape, their measurements are still matched as one of the three standards:

  • Mini
  • Maxi
  • Giant (no frames available)
panoramic frame


Because of their width, panoramic images require a much wider frame. GB Posters stocks a variety of 33 cm x 95cm panoramic print frames, in a huge range of finishes.

Materials and finishes


At GB Posters, our frames are made from a stylish high-quality MDF material. The contemporary style and sleek look suit any living space. They can be delivered next working day and arrive ready to hang as standard. Other delivery options are available.

Our standard frame width is:

We also supply premium frames (known as Artcore) in the following widths:


Every frame uses a shatterproof safety styrene to protect your artwork. Unlike glass, styrene is non-reflective so you can see your poster at all times of day. Styrene also contains a UV stabiliser—this absorbs the ultraviolet rays in sunlight which can cause artwork to fade.


GB Posters offers a large range of finishes for any size of poster, including:

  • Black
  • Oak
  • Silver
  • White

What size frame do I need for my poster?

Frame/poster size compatibility tables

In this section, we match each poster size with the size of frame you will need to properly frame and protect your poster. Any highlighted links will take you to the relevant product page.

Poster types:

  • Mini/maxi/giant posters
  • A poster
  • B posters
  • Alternative sizes

Note: The sizes stated on GB posters is the internal sizes, meaning that the size shown is the print/poster size that fits perfectly inside the frame. For example, if you purchase a 40x50 poster/print, you can simply buy the 40x50 size frame.

Mini/maxi/giant posters

Poster sizeFrame size (cm)Frame size (inch)


40 cm x 50 cm

15.7 in x 19.6 in


61 cm x 91.5 cm

24 in x 36 in


100 cm x 140 cm

39.3 in x 55.1 in

A poster sizes

Poster sizeFrame size (cm)Frame size (inch)


84.1 cm x 118.9

33.1 in x 46.8 in


59.4 cm x 84.1 cm

23.4 in x 33.1 in


42 cm x 59.4 cm

16.5 in x 23.4 in


29.7 cm x 42 cm

11.7 in x 16.5 in


21 cm x 29.7 cm

8.3 in x 11.7 in


14.8 cm x 21 cm

5.8 in x 8.3 in


10.5 cm x 14.8 cm

4.1 in x 5.8 in


7.3 cm x 10.5 cm

2.9 in x 4.1 in


5.2 cm x 7.4 cm

2 in x 2.9 in


3.7 cm x 5.2 cm

1.5 in x 2 in


2.6 cm x 3.7 cm

1 in x 1.5 in

B poster sizes

Poster sizeFrame size (cm)Frame size (inch)


100 cm x 141.4 cm

39.4 in x 55.7 in


70.7 cm x 100 cm

27.8 in x 39.4 in


72 cm x 102 cm

28.3 in x 40.2 in


50 cm x 70.7 cm

19.7 in x 27.8 in


52 cm x 72 cm

20.5 in x 28.3 in


35.3 cm x 50 cm

13.9 in x 19.7 in


25 cm x 35.3 cm

9.8 in x 13.9 in


17.6 cm x 25 cm

6.9 in x 9.8 in


12. 5 cm x 17.6 cm

4.9 in x 6.9 in


8.8 cm x 12.5 cm

3.5 in x 4.9 in


6.2 cm x 8.8 cm

2.4 in x 3.5 in


4.4 cm x 6.2 cm

1.7 in x 2.4 in


3.1 cm x 4.4 cm

1.2 in x 1.7 in

Alternative sizes

Frame size (cm)Frame size (inch)

24 cm x 30 cm

9.4 in x 11.8 in

30 cm x 30 cm

11.8 in x 11.8 in

33 cm x 95 cm

12.9 in x 37.4 in

40 cm x 40 cm

15.7 in x 15.7 in

50 cm x 70 cm

19.6 in x 27.5 in

50 cm x 100 cm

19.6 in x 39.3 in

60 cm x 80 cm

23.6 in x 31.4 in