**How Many Feet In A Roll Of Wallpaper**. 30 sq ft. Wallpaper is also commonly sold in double rolls that are 27 feet long and triple rolls that are 405 feet long.

Wallpaper is also commonly sold in double rolls that are 27 feet long and triple rolls that are 405 feet long. Compute the square footage of each window or door. These sizes compose an industry standard with 21-inch wallpaper being 165 feet long and 27-inch wallpaper being 135 feet long.

### What Is the Size of a Roll of Wallpaper.

Double rolls cover twice the area. Different designs will require varying quantities depending on the match type and the size of the repeat pattern. The three most common single roll sizes and the corresponding wall surface they cover width length respectively are. 36 sq ft.