How to use
- Fill in: Room length (m), Room width (m), Wall height (m), Roll length (m), Roll width (m), Pattern repeat (cm) - 0 for plain and Add 1 spare roll?. Fields with defaults or marked optional can stay as shown.
- Tap Calculate Rolls.
- Read the result - you can print or save it as PDF.
Worked example
With Room length = 5, Room width = 4, Wall height = 2.5, Roll length = 10.05, Roll width = 0.53, Pattern repeat = 0, Add 1 spare roll? = Yes, for repairs:
WALLPAPER ROLLS REQUIRED13 rolls
- Wall strips needed: 34 (each 53 cm wide)
- Cut length per strip: 2.55 m
- Full strips per roll: 3
- Roll size used: 10.05 m × 0.53 m
- Spare roll: 1 spare roll included
Standard strip method: strips around the room ÷ full strips per roll, always rounding up, plus 5 cm trim allowance. Doors and windows are NOT deducted - offcuts above them rarely make full strips. Pattern repeat (none) rounds each cut up to the next full repeat.
