Work out how many wallpaper rolls a room requires.
A roll yields a number of full-height strips, and the wall needs enough strips across its width. Dividing strips needed by strips per roll gives the roll count. Pattern matching and trimming waste real material, so adding a buffer prevents a costly second order that may not match the dye lot.
Wallpaper Rolls
Rolls = (wall width / roll width) / (roll length / wall height)
Rolls = (wall width / roll width) / (roll length / wall height) A roll yields a number of full-height strips, and the wall needs enough strips across its width. Dividing strips needed by strips per roll gives the roll count.
Pattern matching and trimming waste real material, so adding a buffer prevents a costly second order that may not match the dye lot.
This calculator takes 4 inputs: Total wall width, Wall height, Roll length, Roll width. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.