Drywall Calculator
Estimate drywall sheet requirements from wall area.
How to Use the Drywall Calculator
Enter wall or ceiling dimensions and sheet size to estimate the number of drywall sheets required.
Practical Example
A 40 m² surface covered with 1.2 m by 2.4 m sheets needs roughly 14 sheets before adding waste.
Factors That Affect the Result
Openings, ceiling height, sheet orientation, offcuts, damaged boards and layout efficiency can change the final quantity.
Frequently Asked Questions
Should I add waste?
Yes. Extra sheets help cover cuts and damage.
Can I include ceilings?
Yes. Add ceiling area to the total project area.
Should I subtract doors and windows?
Large openings may be subtracted for a tighter estimate.
Related Tools
Drywall Material Planning
Measure the total wall and ceiling area, then compare it with the coverage of the drywall sheet size you plan to use. Doors and large windows can be subtracted, but cuts around openings and corners create waste. Sheet orientation, ceiling work and irregular rooms may also increase the number of boards required. Add a reasonable waste allowance and round up to whole sheets. Screws, joint compound, tape and corner bead should be estimated separately because they are not determined by sheet count alone.