| Roll Type | Width | Length | Coverage |
|---|---|---|---|
| US double roll (bolt) | 27" | 27' | ~61 sq ft |
| US single roll | 27" | 13.5' | ~30 sq ft |
| European roll | 20.5" | 33' | ~56 sq ft |
| Grasscloth | 36" | 24' | ~72 sq ft |
| Mural / panel papers | varies | per drop | sold by panel |
With 8-foot ceilings: about 48 feet of wall → 22 strips → 8 US double rolls with no repeat. A 20" repeat typically pushes it to 11, because each bolt then yields 2 strips instead of 3.
US paper is priced per single roll but ships as a continuous double-roll bolt. 8 single rolls = 4 bolts. Confirm the unit before you compare prices.
Not for patterned paper. The pieces above and around openings still come from full-length drops. Deduct only for very large openings or plain unmatched papers.
Each strip rounds up to a whole number of repeats. On a 9-foot wall, a 25" repeat turns a 112" cut into 125", often costing each roll a strip and adding 30–50% to the order. Half-drop matches consume slightly more again.
One extra roll minimum, from the same batch number. Batches shift color; attic stock saves the wall after a repair. For grasscloth and hand-prints, add 15–20%.