Wall dimensions
14 ft 2 in
8 ft 6 in
Yes
How many rolls of wallpaper do I need?
Start with wall width, ceiling height, and the shortest usable ceiling line. Then subtract doors and windows before you compare roll yield.
6 rollsRecommended buy
80.2 sq ftNet wall area
Wall width14 ft 2 in across the feature wall
Ceiling heightUse the shortest clean line if the ceiling drifts
Pattern repeat20.5 in straight match
Important
Measure in three places, then use the shortest ceiling height if the room drifts.
Open measuring guidePattern & roll
20.5 in
Straight
20.5 in x 33 ft
Coverage: 56.4 sq ft per roll before trimming and waste.
Openings deducted
Door3 ft x 7 ft
Window3 ft 6 in x 4 ft 6 in
Add another opening Wall area summary
Total wall area120.7 sq ft
Openings deducted-40.5 sq ft
Net wall area80.2 sq ft
Roll layout & yield
| Roll | Coverage per roll | Cumulative coverage | Status |
|---|---|---|---|
| 1 | 56.4 sq ft | 56.4 sq ft | Full |
| 2 | 56.4 sq ft | 112.8 sq ft | Full |
| 3 | 56.4 sq ft | 169.2 sq ft | Extra |
| 4 | 56.4 sq ft | 225.6 sq ft | Extra |
| 5 | 56.4 sq ft | 282.0 sq ft | Extra |
| 6 | 56.4 sq ft | 338.4 sq ft | Extra |
You need 6 rolls to cover 80.2 sq ft with trimming room, repeat waste, and a same-lot safety buy.
Shopping summary
Buy 6 rolls Always buy in the same lot.
Wallpaper6 rolls
Coverage needed80.5 sq ft
Total coverage338.4 sq ft
Overage258.2 sq ft
Print shopping list Calculate wallpaper rolls needed
Use the calculator flow when you need a fast answer that still accounts for trim, pattern repeat, and door or window deductions.
Calculate number of wallpaper rolls needed
Keep one room per plan. Separate walls with very different heights usually need their own count instead of one blended estimate.
How to calculate how many rolls of wallpaper I need
Measure first, compare repeat and roll yield second, then round up for the same-lot buy instead of trying to shave the final roll.
How the calculator works
See the order for room size, openings, pattern repeat, and final roll yield.
Measuring guide
Take cleaner wall, door, and window measurements before you buy wallpaper.
Pattern basics
Read repeat size, straight match, and drop match without second-guessing the label.
Planning tips
Keep the room sequence, seam placement, and same-lot shopping list organized.
FAQ
Short answers for common wallpaper roll calculator questions and measurement mistakes.