Straight-match wallpaper.
Measure each complete drop height and the supplied vertical repeat.
Read the right quantitative data
Roll width, length, repeat and selected cut allowance.
Check this ordering assumption
Wall area does not determine usable full drops after pattern rounding.
Allocate each actual cut-height group on its own roll basis.
A worked quantity method
This illustrative set of supplied inputs demonstrates Wallpaper Rolls Calculator. Replace the example measurements and product figures with your own before ordering.
| Supplied input | Metric display | US display |
|---|---|---|
| Roll width | 0.5 m | 1.64 ft |
| Roll length | 10 m | 32.81 ft |
| Pattern repeat | 300 mm | 11.81 in |
| Extra length per drop | 200 mm | 7.87 in |
| Pattern match | Straight / no offset | Straight / no offset |
| Waste allowance | 0 % | 0 % |
| Wall 1: Wall width | 4 m | 13.12 ft |
| Wall 1: Wall height | 2.5 m | 8.2 ft |
Wallpaper rolls to purchase: 3 rolls
- Full-height drops
- 8
- Rolls before allowance
- 3
Rolls for different cut heights are kept separate. Mixed-height offcut reuse and door/window deductions are not optimised.
Open this example in the full calculatorYour measurement and product-data sheet
Record what you know and mark verified items ready. Notes save on this browser after you edit them. Download a copy before clearing browser data.
Measure each complete drop height and the supplied vertical repeat.
Roll width, length, repeat and selected cut allowance.
Wall area does not determine usable full drops after pattern rounding.
Input for Wallpaper Rolls Calculator. Record the value with its unit and quantity basis.
Input for Wallpaper Rolls Calculator. Record the value with its unit and quantity basis.
Input for Wallpaper Rolls Calculator. Record the value with its unit and quantity basis.
Input for Wallpaper Rolls Calculator. Record the value with its unit and quantity basis.
Input for Wallpaper Rolls Calculator. Record the value with its unit and quantity basis. Available choices: Straight / no offset; Half-drop allowance
Input for Wallpaper Rolls Calculator. Record the value with its unit and quantity basis.
Input for Wallpaper Rolls Calculator. Record the value with its unit and quantity basis.
Input for Wallpaper Rolls Calculator. Record the value with its unit and quantity basis.
Choose your next calculation
Wallpaper Rolls Calculator
Count full-height wallpaper drops with pattern repeat, trim and matching allowance.
Mixed Height Wallpaper Roll Allocation Calculator
Allocate straight-match wallpaper drops of different heights to rolls after repeat rounding and initial alignment loss.
Turn the estimate into an order
- Confirm that all quantities use the same measured basis and the selected product's current data.
- Keep different products, finishes and handed variants in separate purchase lines.
- Review exact demand and whole-pack purchase quantities before entering your quoted prices.
- Record compatible stock already on hand, then save the remaining order in your browser project.
Measurement and purchase guides
Other materials in this family
Reviewed 6 October 2026. Geometry and purchase arithmetic use your measurements and selected specifications. Calculation scope.