Terms of Use

Last updated: September 2026.

Estimates only

All results provided by RoofCalcWorks calculators are planning estimates only. They do not constitute a contractor quote, professional measurement, engineering advice or a guarantee of pricing. Actual costs and material requirements vary by location, material, roof complexity, labor rates, site conditions and contractor pricing.

No professional reliance

Do not rely on these calculators for structural, engineering or safety decisions. Consult a qualified professional for such matters.

Acceptable use

You may use the calculators freely for personal and commercial estimation. Automated scraping or republishing of the tools or content without permission is not allowed.