How much wall area does one roll cover?
A typical double roll (21" × 33 ft) covers about 57–58 sq ft. Check your roll label — vinyl and peel-and-stick vary.
How Many Rolls of Wallpaper Do I Need?
The wallpaper store sells by the roll — this tool converts your wall area into a roll count rounded up so you do not run short.
Rooms
ft
in
ft
in
ft
in
Roll settings
Standard double roll: 21"
Common: 33 ft
0 for no repeat
$
Frequently asked questions
Do I subtract doors and windows?
Yes. The calculator deducts about 20 sq ft per door and 15 sq ft per window for a closer estimate.
What waste percentage for wallpaper?
Plain paper: 10–15%. Patterned paper: 15–25%. The calculator defaults to 15% and bumps waste when pattern repeat is set.
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