How To Calculate Wallpaper Without a Wallpaper Calculator
1. Determine your square footage. To do this, measure the width of the walls and add them together. Then measure the height of your walls. Multiply the total width of your walls by the height. This will give you the total square footage. *Note: If your room has walls of varying heights, calculate the area (width x height) of each wall individually and add them together. Then proceed with steps 2 and 3.
2. For each standard door subtract 17 from the square footage. (For any other size door, subtract the area of the door from the total square footage).
3. Divide the total square footage by 42.
How To Calculate Grasscloth Wallpaper Without a Wallpaper Calculator
1. Follow steps 1 & 2 above.
2. Once you’ve determined your total square footage, divide by 72, the total square footage of one roll.
How To Calculate Peel & Stick Wallpaper
1. Follow steps 1 & 2 above.
2. Once you’ve determined your total square footage, divide by 45, the total square footage of one roll.
How To Calculate Primrose Peel & Stick Wallpaper
1. Follow steps 1 & 2 above.
2. Once you’ve determined your total square footage, divide by 34.17, the total square footage of one roll.
We always think it’s best to order extra rolls to account for trimming or mistakes. Unopened rolls can be returned, and leftover paper can be used for lining drawers or other projects.