Estimate full wallpaper rolls from strip width, wall height, trim allowance and a straight-match vertical pattern repeat.
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0.001 – 1000000000
0.001 – 1000000000
0.001 – 1000000000
0.001 – 1000000000
0 – 1000000000
0 – 1000000000
0 – 100
Whole wallpaper rolls
7
Straight-match vertical strips on uniform-height walls. Offset/drop matches, obstacles and batch alignment need a separate layout. Openings are not subtracted because cuts may still require full strips.
Cut length = wall height + trim, rounded up to a whole vertical repeat when a repeat is entered.
Strips per roll = floor(roll length ÷ cut length).
Rolls = ceil[(ceil(wall width ÷ roll width) + spare strips) ÷ strips per roll].
Round wall height plus trim up to a whole pattern repeat. Divide roll length by that strip length and round down; divide required strips by strips per roll and round up.
A 2.5 m wall with 0.1 m trim and 0.32 m repeat needs 2.88 m strips. A 10 m roll yields three complete strips.
No. It assumes straight-match vertical strips on walls of one height. Offset matches and complex wall layouts need a product-specific cutting plan.
Last updated . Results are estimates for informational purposes only.