Wallpaper Calculator

Rolls to buy from area, roll coverage, and pattern-repeat waste.

You'll need — rolls of wallpaper for — sq ft.

Area source

Use the active Room Layout's wall area or override manually.

Area source

Already ran Room Layout for this room? Keep this on Active project to skip re-entering area by hand.

Chained wall area

Run Room Layout first to prefill wallpaper with the active project's wall area.

Wallpaper inputs

Waste defaults by pattern-repeat complexity; override if needed.

Pattern repeat

Solid or random patterns need no matching; straight/drop match needs extra waste to line up the repeat.

You'll need — rolls of wallpaper for — sq ft.

You'll need

Wallpaper estimate

Warnings

  • ERROR Enter an area greater than zero.

Detail values

Adjusted area
— sq ft

Assumptions

  • Estimated waste: 10% for an average project
  • Roll coverage: 56 sq ft/roll (enter your product's actual coverage)

Included: wallpaper rolls, waste allowance.

Not included: labor, delivery, permits, disposal of waste material.

Formula details
  • Adjusted area: area x (1 + waste%)
  • Rolls to buy: ceil(adjustedArea / rollCoverage)
Material List

About this calculator

Enter the area to cover and your product's actual roll coverage. Waste defaults by pattern-repeat complexity, editable.

FAQ

What is pattern repeat?

How wallpaper strips need to align to match the pattern -- none needs no matching, straight match aligns horizontally, drop match staggers alternating strips. More complex matching wastes more material, reflected in the default waste percent.