How to Measure a Wall for Art

October 15, 2026

The most common mistake with wall art is buying the wrong size, and nearly always too small. A picture that looked large on a phone turns out to be the size of a magazine, and it sits lost in the middle of the wall. This is easy to avoid. It takes a tape measure, a pencil and ten minutes.

It matters more with made-to-order art. Our pieces are printed for each order, and returning one because the size was wrong means paying the return shipping yourself. Measure first.

What you need

A tape measure
A pencil and paper, or the notes app on your phone
Painter's tape, or newspaper and scissors
A spirit level, or a level app

Step 1: measure the space the art will fill

Don't measure the whole wall from corner to corner. Measure the part the art will relate to.

Above furniture: measure the width of the furniture. The sofa, bed, desk or sideboard is what the art has to match.
On an empty wall: measure the clear width, between corners, door frames, windows and anything else that breaks it up.
Height: measure from the top of the furniture to the ceiling, or from floor to ceiling on an empty wall.

Write down the obstacles as well: light switches, sockets, thermostats, vents, radiators, shelves and the swing of any door. A picture can't cover a switch.

Step 2: work out the width

Two rules cover almost every case.

Above furniture: two-thirds to three-quarters

The art, or the group of art, should be about two-thirds to three-quarters as wide as the furniture below it.

Multiply the furniture width by 0.66 for the minimum.
Multiply it by 0.75 for the maximum.

Furniture	Typical width	Art width
Three-seat sofa	84 in	55 to 63 in
Loveseat	60 in	40 to 45 in
King bed	76 in	50 to 57 in
Queen bed	60 in	40 to 45 in
Twin bed	38 in	25 to 29 in
Desk	48 in	32 to 36 in
Console table	36 in	24 to 27 in

The art should never be wider than the furniture.

On an empty wall: about 60 percent

Art on an open wall should fill roughly 55 to 75 percent of the clear width. Multiply the wall width by 0.6 for a good starting figure. On a 10-foot wall, that is 6 feet of art, as one piece or a group.

Step 3: work out the height

On an empty wall, the centre of the art goes at about 57 to 60 inches from the floor. That is average eye level. See the 57-inch rule.
Above furniture, the bottom of the art goes 6 to 10 inches above the top of the furniture. Closer than that looks cramped. Further away, and the art floats free of the furniture.
Leave room at the top. At least 6 inches between the art and the ceiling or any moulding.

To find the tallest piece that fits above furniture, take the height from the furniture to the ceiling and subtract 14 to 16 inches.

Step 4: choose the orientation

A wide space, such as above a sofa or a bed, wants a landscape piece or a row of pieces.
A tall, narrow space, such as between two windows or beside a door, wants a portrait piece.
A square space, such as above a small table, takes either, or a square.

Check which way the artwork is composed before you choose. Much of our artwork is portrait. See horizontal, vertical or square.

Step 5: measuring for more than one piece

Treat a group as a single shape. The whole group, including the gaps, should meet the width rule.

Gaps: 2 to 4 inches between frames. Keep them equal.
The sum: take the total width you want, subtract the gaps, and divide by the number of pieces.

An example. You want 60 inches of art above a sofa, as three pieces with 3-inch gaps. There are two gaps, so 6 inches. That leaves 54 inches, or 18 inches per piece. Three 18 × 24 pieces will fit.

See building a gallery wall and symmetry vs asymmetry.

Step 6: test it on the wall

Numbers are hard to picture. Before you order, mark the size on the wall.

Painter's tape: tape the outline of the piece on the wall at the planned height.
Paper: cut newspaper or wrapping paper to the size and tape it up.

Then step back. Look at it from the doorway and from where you sit. Leave it up for a day. If it looks small, it is small. Go up a size. People rarely regret going bigger.

Take a photograph of the taped outline. It is easier to judge proportion in a photo than in the room.

Blue Mountain Fog canvas wall art by Kiyo Arts — Blue Mountain Fog on canvas. Tape the outline on the wall before you choose a size.

Step 7: allow for the frame and the depth

Canvas: the listed size is the size of the finished piece. Ours are 1.25 inches deep.
Framed posters: the listed size is the print. The frame adds a little to each side.
Posters you frame yourself: a frame adds 1 to 2 inches a side, and a mount adds 2 to 4 more. A 12 × 18 poster in a mounted frame can end up about 18 × 24 on the wall.
Tapestries: fabric hangs with a little give, and the way you fix it changes the shape slightly.

See canvas vs poster vs framed poster.

Common measuring mistakes

Measuring the wall and not the furniture. Art above a sofa relates to the sofa.
Forgetting the switch or the vent.
Mixing up width and height. Sizes are usually given width first, but check which way the piece hangs.
Judging size from a screen. A product photo shows the picture, not its scale.
Rounding down. If you are between two sizes, the larger is usually right.
Forgetting where you will stand. In a narrow hall you see art from two feet away. In a living room you see it from ten. Art seen from a distance needs to be bigger.