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Blog · November 3, 2026

How to Measure a Wall for a Custom Mural

Measure twice, print once. A five-minute guide to measuring your wall, with doors, windows and sloped ceilings covered.

A custom mural is printed to your numbers. Good numbers take five minutes and a tape measure.

Width

Measure the wall from corner to corner in three places: near the ceiling, in the middle and near the floor. Walls are rarely square. Use the largest number.

Height

Measure from the top of the baseboard to the ceiling at the left, the center and the right. Again, use the largest number. The extra is trimmed at install.

Doors, windows and outlets

Do not subtract them. Measure the whole wall, then mark each opening in the Wall Designer Tool. You place a door or window by its distance from the left or right and from the top or bottom. The design shows around it, so you can keep faces and words clear.

Sloped ceilings and stairs

Measure the tallest point for the height. Mark the sloped part as a covered area. You will trim along the slope on site.

More than one wall

Wrapping a corner? Add each wall as its own canvas. The tool joins up to six, side by side, and one design can run across all of them.

Once you have your numbers, drop them into the price calculator. Then read how to install peel and stick wallpaper so you know what install day looks like.

Free, no account needed

What would this cost on your wall?

Enter the width and height and see the price in seconds.

Ready to do your own wall?

Price it in seconds, then build it in the Wall Designer.

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