Wallpaper Roll Calculator โ Wall Size and Pattern Repeat
Enter wall dimensions, roll size, trimming allowance and pattern repeat to calculate the number of drops and rolls to buy.
Drops needed
Drops per roll
Rolls to buy
Drops = total wall width รท roll width, rounded up. With a pattern, each cut length is rounded up to a full repeat.
Doors and windows are not deducted because full drops may still be needed around them. Buy at least the result from one batch; stairs, slopes and horizontal matching need separate planning.