Mouse with Red Star Balloon in Striped Shirt Kids Playroom Wall Art

Choosing a size is the part of buying art online that people most often get wrong. The print arrives, it goes up, and it is smaller than the wall wanted. This guide has every size we print, drawn to scale, in inches and centimetres, and a size to start from for each of the walls people ask about most.

Portrait sizes

Most designs in the shop are portrait. They come in nine inch sizes plus A1 to A4. The inch sizes are not all the same shape: five of them are a 2:3 crop, which is tall and narrow, and four are 3:4, which is squarer and reads wider on the wall. It is worth checking the shape as well as the size, because 18 × 24 and 20 × 30 in are close in height but sit very differently above a sofa.

Landscape sizes

Horizontal designs run on their own ladder, and every one of them is a 3:2 crop. They go considerably wider than the portrait sizes. The largest, 54 × 36 in, is four and a half feet across, so measure the wall before choosing either of the top two.

A1 to A4

A sizes are the metric standard, and they exist here for anyone buying a ready-made frame in Europe or the UK. They are a slightly narrower shape than the inch sizes. Each one is exactly half of the size before it, so an A3 print fills half an A2 frame.

What comes on paper, and what comes on canvas

Not every size is offered in every material. The smallest size and the A sizes are printed on paper only, because canvas does not stretch well at those dimensions. The size menu on each product page shows what is actually available for that design.

The measurements on this page are the printed image. A floating frame adds a little to the outside measurement, so allow for that when you are fitting a print into a tight alcove.

How high to hang it

Hang to the eye, not to the ceiling. The centre of the artwork wants to sit 57 to 60 inches from the floor, which is where galleries hang and where most people look. A high ceiling does not change this. Raising a print because the wall is tall is the single most common hanging mistake, and it leaves the picture floating with nothing under it.

Over furniture the gap decides it instead. Leave 6 to 10 inches, or 15 to 25 cm, of clear wall between the top of the sofa and the bottom of the frame. Closer than that and the two read as one lump. Further and they stop belonging together.

Above a sofa

Aim to fill roughly two thirds of the width of the furniture below. On a standard three-seat sofa that is about 56 inches of artwork, which is wider than any single portrait print, so a pair or a set of three usually works better than one piece.

Above a bed

Match the artwork to the width of the bed rather than the width of the wall, and keep the set narrower than the headboard. Art that overhangs a bed on either side reads as a mistake even when the size is technically right.

Desks, consoles and hallways

These are the narrow walls, and they punish oversizing. Over a desk, a 16 × 24 in print clears the top of a monitor without crowding it. Over a console, two 12 × 18 in prints hold the width better than one piece stranded in the middle. In a hallway, where nobody can stand far enough back to take in a large print, two 12 × 16 in stacked one above the other work harder than a single big one.

Hanging a set

Leave 2 to 3 inches, or 5 to 8 cm, between frames, and keep every gap the same. Treat the whole set as one rectangle: find the centre of that rectangle, and hang it at the same 57 to 60 inches a single print would want.

• A pair is the easiest set to get right. Align the bottom edges and keep both prints the same size.
• Three in a row fills a sofa wall properly. Use one subject and one style so the run reads as a series.
• A grid of four is the calmest layout of all, and the least forgiving of uneven gaps.
• Up a staircase, follow the slope rather than the steps. Keep the centre of each print the same distance above the stair nose.

Still deciding

Cut newspaper to the exact size, or run painter's tape around the outline, and leave it on the wall for a day. It costs nothing and it settles the question faster than any chart.

Caught between two sizes, take the larger one. Rooms almost always take more than they look like they will, and a print that is slightly too big still reads as deliberate. One that is too small never does.