Handcrafted in the UK
12" x 18" Picture Frames
In the UK, these frames hold artwork measuring 30 × 45cm. In the US, the same frame is sold as 12 x 18 inch, holding a 30.5 × 45.7cm picture. A 2:3 shape that fits photography prints and slim posters without cropping.
Add a mount for these frames for a border. Compare 20 × 30cm (8×12in) and 40 × 60cm (16×24in), the 2:3 sizes either side, and 30 × 40cm (12×16in). This size suits our yellow and natural wood frames.
All our frames are handmade to order by Guild Certified Framers and finished with gallery-grade, shatterproof acrylic with UV protection. Explore 100+ finishes in all picture frames.
30 x 45 cm (12 x 18 in) size guideTap to see dimensions, what fits and mount sizes+
Inside size (UK): 30 × 45 cm (300 × 450 mm). This is the size of the picture the frame holds.
Inside size (US): 12 × 18 in (30.5 × 45.7 cm).
Best for: Camera photos (3:2) and slim posters.
Size on the wall (UK): the outside of the frame is bigger by the moulding width on every side.
| Moulding width |
Outside size |
| 20 mm |
34 × 49 cm |
| 35 mm |
37 × 52 cm |
| 50 mm |
40 × 55 cm |
Each frame page shows the exact outside size for that frame.
With a mount (UK, 30 x 45 cm): smaller pictures that sit well in this frame, and the border you get (portrait, measured to the edge of the print):
| Picture |
Border at the sides |
Border top and bottom |
| 20 × 30 cm print |
5 cm |
7.5 cm |
| A4 print |
4.5 cm |
7.7 cm |
More on sizes, shapes and mounts in our photo and picture frame size guide.
What size is a 30 x 45 cm frame?
In the UK, it holds a 30 × 45 cm picture. The outside is bigger by the moulding width, for example about 37 × 52 cm with a 35 mm moulding.
Is 30 x 45 cm the same as 12 x 18 inches?
Nearly, but not exactly. 12 x 18 inches is 30.5 × 45.7 cm, a few millimetres bigger. In the UK we make this frame at 30 × 45 cm, and in the US at 12 x 18 inches. If your print is in exact inches, measure it, and choose made to measure if it's larger than 30 × 45 cm.
What fits in a 30 x 45 cm frame?
A 30 × 45 cm picture fits exactly. With a mount, a 20 × 30 cm print (about 5 cm at the sides and 7.5 cm top and bottom) or an A4 print (about 4.5 cm and 7.7 cm).
See them with your own artwork. Upload a photo of your print, photo or painting and preview it inside any of these frames, true to size, before you buy, even if you're only buying the frame. Your image stays on your device.
