Drywall Calculator

Calculate approximate board area and sheet count for a room or project with standard drywall sheet sizes.

Room length (ft)

Room width (ft)

Wall height (ft)

Doors/windows area (sq ft)

Include ceiling

Sheet size

Waste allowance (%)

—Net wall area

—Ceiling area

—Area incl. waste

—Sheets to buy

How to use this Drywall Calculator

Estimate drywall sheets from wall and ceiling area, openings, sheet size, and waste allowance. Enter your values above and the result is calculated directly in your browser. No account is required.

Fast answer, clear inputs

This tool is built around one job: give the answer quickly without forcing a signup or hiding the result. Related tools are linked nearby when the next calculation or conversion is useful.