Cost guide · Wallpaper
How many rolls of wallpaper for a 12x12 room?
9 double rolls for a 12 × 12 room with 8 ft walls and one door, using standard 20.5 in × 33 ft rolls with no pattern repeat. That is 27 strips at 3 strips per roll. With 9 ft walls and a 21 in repeat it jumps to 14 rolls. Paper and tools at $60.00 a roll: $560.00.
Prices Ballpark U.S. home-center figures, not quotes. Default price list reviewed . Enter local prices in the calculator for a tighter number.
Materials takeoff
How many rolls of wallpaper for a 12x12 room? · https://estimahome.com/guides/wallpaper-rolls-12x12-room/
Room length: 12 ftRoom width: 12 ftWall height: 8 ftWidth of openings to skip: 3 ft
- Wall run
- 45 ft
- Strips
- 27
- Strip length
- 100 in
- Strips per roll
- 3
| No. | Item | Qty | Unit | Unit cost | Amount |
|---|---|---|---|---|---|
| 1 | Wallpaper, 20.5 in × 33 ft | 9 | roll | $60.00 | $540.00 |
| 2 | Smoother, knife, seam roller | 1 | set | $20.00 | $20.00 |
- Subtotal
- $560.00
- Likely range
- $476.00 – $644.00
- Order every roll from the same batch (dye lot) number, plus one spare for repairs.
- If strips per roll is 0, the roll is shorter than one strip: check roll length and wall height.
Buy these materials
- 9 rolls of wallpaperAmazon search for rolls of wallpaper (opens in new tab)
- 1 wallpaper tool kitAmazon search for wallpaper tool kit (opens in new tab)
Links open a store search for each item. Check sizes and grades against your plan.
Open the wallpaper calculator with these inputsChange any measurement, assumption or price and the takeoff updates.
How the numbers work
- Wall run: 2 × (12 + 12) = 48 ft, less 3 ft for the door = 45 ft.
- Strips: 45 × 12 ÷ 20.5 in = 26.34, rounded up to 27.
- Strip length: 96 in of wall + 0 in repeat + 4 in trim = 100 in.
- Strips per roll: 396 in ÷ 100 in, rounded down = 3.
- Rolls: 27 ÷ 3, rounded up = 9.
- Cost: 9 × $60.00 + 1 × $20.00 = $560.00.
Comparison
| Walls | Repeat | Strips per roll | Rolls |
|---|---|---|---|
| 8 ft | None | 3 | 9 |
| 8 ft | 21 in | 3 | 9 |
| 9 ft | None | 3 | 9 |
| 9 ft | 21 in | 2 | 14 |
| 10 ft | None | 3 | 9 |
Each row is a separate run of the Wallpaper Calculator at default prices. The highlighted row is the project above.
What changes the cost
- Pattern repeat
- Each strip has to start at the same point in the pattern, so the repeat is added to every strip. A long repeat on tall walls can cost a whole strip per roll.
- Roll size
- US double rolls are usually 20.5 in × 33 ft. Many papers are priced per single roll but sold only in double rolls, and European and designer rolls differ. Use the dimensions on the label.
- Paper grade
- Wallpaper prices range widely by maker and material. The $60.00 default is a ballpark for a prepasted double roll; enter the price of the paper you choose.
- Waste and spare roll
- Trim and pattern matching are the waste on wallpaper, and the strip method already counts them. Order every roll from the same batch number, plus one spare for repairs; a roll from a later run may not match.
- Labor versus DIY
- These are register prices for doing the work yourself. A contractor's bid adds labor, equipment, overhead, permit fees where they apply, and markup on materials, so it will run well above this figure. Get two or three written bids against the same plan and compare the material lists line by line. Wall prep, such as stripping old paper, skim-coating and priming, is extra and not counted.
- Regional prices
- Default prices are ballpark U.S. home-center figures. Expect them to differ by region, season, brand and grade. Enter your store's prices in the calculator and every quantity on this page reprices.
Questions
How much wallpaper for a 12x12 room with 9 ft ceilings?
9 double rolls with no pattern repeat. A 21 in repeat cuts each roll to 2 strips and raises the count to 14.
Do I subtract windows when ordering wallpaper?
Usually not. You still need full strips above and below, and the offcuts rarely fit elsewhere. Subtract doors and wide openings that run close to full height.
How many square feet does a double roll cover?
A 20.5 in × 33 ft double roll is about 56 sq ft, but count strips, not square feet. Trim and pattern matching use part of every roll.
Figures computed with the Wallpaper Calculator and the default price list (/api/prices.json, reviewed October 20, 2026). Quantities are rounded up to what stores sell. Updated 2026-10-20.