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Wallpaper Calculator

How To Calculate How Much Wallpaper You'll Need

  1. Determine the square footage you wish to cover. To do this, first measure the height of your walls. Use the tallest wall as your wall height. Now measure the width of each wall you wish to cover and add them together.
  2. Multiply the total height in feet and the total width in feet of your room. This will give you the total square footage.
  3. For each standard door subtract 17 from the square footage. (For any other size door subtract the square footage of the door from the total square feet).
  4. Find the pattern repeat. This can easily be found on the product page of any item on our website.
    • If there is no repeat, divide by 28.
    • If the repeat is small, meaning less than 18", divide by 23.
    • If the repeat is large, meaning 1*" or greater, divide square footage by 20.
  5. Your total will tell you the amount of single rolls recommended for your project. Remember, wallpaper is sold as a double roll bolt, so if your total is 2, you'll need 2 single rolls, which is equivalent to one double roll bolt. Be sure to round up to the nearest even whole number to determine how many double rolls you will need. For example, if your total is 3.87, you'll round up to 4 single rolls (2 double roll bolts). 

How To Calculate How Much Peel + Stick Wallpaper You'll Need 

If ordering peel and stick wallpaper, follow these instructions.

  1. Follow steps 1–3 above.
  2. Once you’ve determined your total square footage, divide by the total square feet of one roll to determine how many rolls you need. Most of our peel and stick wallpapers are 28.18 square feet, but every item on our website lists the square footage on the product listing.

As a final tip, it’s better to have extra wallpaper to hand to account for trimming, repairs or additional papering. If you find yourself with leftover paper after hanging, use it to line drawers or for other decorative projects around the house.

If you'd like us to verify how much wallpaper you'll need for your project, please feel free to contact us - we're always happy to help!