Terms of Use

Last updated: October 12, 2026

Using the site

BuildByCalc’s calculators and guides are free to use for personal and commercial projects. By using the site, you agree to these terms.

Estimates, not guarantees

Results are estimates based on the information you enter and the published data we cite. Real projects vary: site conditions, product brands, workmanship and local codes all affect what you need. Check quantities with your supplier before ordering, and check structural work with a qualified professional and your local building department. See the disclaimer.

Content

The text, calculators, diagrams and design of this site belong to BuildByCalc. You may link to any page and share results. Please don’t copy pages or calculator code onto other sites. If you’d like a calculator on your own site, ask us about embedding.

Links to other sites

We link to manufacturer and industry sources so you can check our numbers. We aren’t responsible for the content of other sites.

Liability

The site is provided “as is”. To the extent the law allows, BuildByCalc isn’t liable for losses from using, or relying on, its calculators or content.

Changes

We may update these terms. The date above shows the latest version.