Answer
How many rolls of wallpaper do I need?
Divide the wall area by the roll’s coverage, less about 15% for pattern matching: a 12 × 12 ft room with 8 ft ceilings needs about 7 rolls of a 56 sq ft double roll.
Rolls by room size
| Room | Wall area | Rolls |
|---|---|---|
| 10 × 10 ft | 269 sq ft | 6 |
| 10 × 12 ft | 301 sq ft | 7 |
| 12 × 12 ft | 333 sq ft | 7 |
| 12 × 14 ft | 365 sq ft | 8 |
| 14 × 16 ft | 429 sq ft | 10 |
Check the roll size
US double rolls are often about 20.5 in × 33 ft (about 56 sq ft); wider or European rolls differ. Use the coverage on the label, and allow more waste for large pattern repeats.
More questions
Should I buy an extra roll?
Yes, from the same batch (dye lot), for repairs.
Does one accent wall work the same way?
Yes: measure that wall’s width × height and divide by the roll’s usable coverage.
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