Is this Lumber Calculator free to use?

Yes, Lumber Calculator is 100% free to use online with no installation or account required.

How do I use the Lumber Calculator?

Simply enter your values into the required input fields and click calculate to view the results instantly.

Yes, the calculator is fully responsive and compatible with Android, iOS, Windows, macOS, and Linux web browsers.

Lumber Calculator — Free Online Tool

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Calculate Lumber results

Note: Enter project dimensions below. Results are estimates — add 5-10% waste factor and verify with local building codes.

Input

Area (sq ft)

Stud Spacing (in OC)

⚠️ For educational purposes only. Verify results with a qualified professional when making important decisions.