Wallpaper Rolls
Work out how many wallpaper rolls a room requires.
About Wallpaper Rolls
A roll yields a number of full-height strips, and the wall needs enough strips across its width. Dividing strips needed by strips per roll gives the roll count. Pattern matching and trimming waste real material, so adding a buffer prevents a costly second order that may not match the dye lot.
Formula
Wallpaper Rolls
Rolls = (wall width / roll width) / (roll length / wall height)
- strips
- Vertical pieces cut from a roll at wall height
Worked example
With the default values below, Wallpaper Rolls returns Strips per Roll of 4. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Total wall widthminimum 0 ft
- 60 ft
- Wall heightminimum 0 ft
- 8 ft
- Roll lengthminimum 0.01 ft
- 33 ft
- Roll widthminimum 0.01 ft
- 2.25 ft
Results
- Strips per Roll
- 4
- Strips Needed
- 27
- Rolls Needed
- 7
- Rolls with 10% Buffer
- 8
Step by step
- 1Values used
- 2Wallpaper Rolls
- 3Strips per Roll= 4
- 4Strips Needed= 27
- 5Rolls Needed= 7
- 6Rolls with 10% Buffer= 8
Assumptions and limits
- The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
- Figures are rounded for display to whole numbers, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Frequently Asked Questions
How is Wallpaper Rolls calculated?
Rolls = (wall width / roll width) / (roll length / wall height) A roll yields a number of full-height strips, and the wall needs enough strips across its width. Dividing strips needed by strips per roll gives the roll count.
Why does Wallpaper Rolls matter?
Pattern matching and trimming waste real material, so adding a buffer prevents a costly second order that may not match the dye lot.
What values do I need to enter?
This calculator takes 4 inputs: Total wall width, Wall height, Roll length, Roll width. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.