Rolls required3
A 15% waste allowance was applied, added as extra strips.
Openings are not subtracted from the strip count: wallpaper is bought and cut as full-height strips across the whole wall, and a strip crossing a window or door still has to be cut from a full-length drop — the cutout is waste, not a saved strip. Net area is shown above for reference only.
Area
Gross wall area10.00 m²
Net area (openings deducted, informational)10.00 m²
Strips
Strips needed (incl. waste)10
Usable strips per roll4