Drywall Calculator
Plan drywall from project dimensions, material rate, and waste. Use this free drywall calculator for fast, clear results with no signup required.
Drywall Calculator guide
What it is for
Plan material quantities for drywall calculator before purchasing supplies.
How it is calculated
Packages needed = ceil(length in feet × width in feet × 1.10 / package coverage in square feet). This includes a fixed 10% waste allowance and rounds up to whole packages.
Assumptions
The surface is reasonably regular and the dimensions, coverage, and waste represent the real project.
Example
Worked example using the fields in order: 12, 10, 100. The calculated primary amount is 2 packages; the secondary value is 120. Check the units before purchasing.
Limitations
Cuts, openings, packaging, site conditions, and local codes can change the final quantity; confirm with a supplier or professional.