Terms of Use

Last updated 2026-10-06.

Estimates only

ForemanMath calculators produce planning estimates based on the numbers you enter and common rules of thumb. They are not engineering, a substitute for your plans, or a guarantee of quantities or cost. Actual material needs vary with site conditions, product, installation method and workmanship.

Codes and safety

Building codes vary by location and change over time. Structural members, stairs, roofing and other work regulated by code must follow your local code, your approved plans and the manufacturer's instructions. Consult a licensed professional when in doubt.

No warranty

The site is provided as is, without warranties of any kind. ForemanMath is not liable for any loss arising from use of the calculators or the information on this site.

Content

The text, calculators and drawings on this site are the property of ForemanMath. You may link to any page and share your results.