Terms of use
Use the results to plan, then check the details before you buy or build.
General information
The calculators provide material estimates based on the measurements and assumptions entered. Results may differ from the quantities your project needs because products, site conditions and measurements vary.
No professional advice
This site does not provide structural, engineering or other professional advice. Check local code; consult a professional for walls over your local height limit. Obtain professional guidance for load-bearing work and any project that requires it.
Material orders and responsibility
You are responsible for checking dimensions, yields, densities, waste allowances and order quantities against your supplier's specifications. The site does not guarantee that an estimate will meet your project's needs.
To the extent permitted by applicable law, the site owner accepts no liability for purchases, shortages, surplus materials or project losses arising from reliance on these estimates. This statement does not exclude rights or liabilities that cannot legally be excluded.
Sources and corrections
Source access dates do not guarantee current product specifications. Read the methodology and editorial standards. Report suspected errors through the contact page.