Enter your Room Length, Width, and Ceiling Height, then tell the Wallpaper Calculator how many doors and windows you have and your roll's pattern repeat — and it calculates how many wallpaper rolls you need, accounting for total wall area, coverage per roll, and openings to subtract.
Wallpaper Rolls Needed
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Total Wall Area
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Coverage Per Roll
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Doors & Windows Area
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Measure each wall length and the ceiling height. For irregular rooms, measure each wall separately and add them together.
Pattern repeat is the distance between identical elements in the wallpaper design. Larger repeats require more wastage for proper pattern matching.
No, subtract the area of doors and windows from your total wall area as these areas won't need wallpaper coverage.
The 10% wastage accounts for trimming, pattern matching, and potential mistakes during installation. It's recommended for most wallpaper projects.
A standard wallpaper roll typically covers about 56 square feet, though this can vary by manufacturer and roll dimensions.
For complex room shapes with alcoves or irregular walls, measure each section separately and consider adding extra wastage for more accurate results.
Yes, this calculator works for most wallpaper types. However, some specialty wallpapers may have different coverage rates or require additional considerations.