Terms of use

Last updated: June 2026.

Estimates are for planning only

DIYCalcs provides material estimates based on the figures you enter and standard coverage and waste rates. Real projects vary: surfaces, site conditions, product specifications and local building codes all affect the true quantity required. Treat every result as a planning estimate, not a guarantee. Always confirm quantities with your supplier or a licensed professional before purchasing or building.

No liability

To the fullest extent permitted by law, DIYCalcs is not liable for any loss, cost or damage arising from reliance on the calculators or content on this site, including over- or under-ordering of materials.

Acceptable use

You may use the calculators freely for personal and commercial project planning. You may not scrape, republish or redistribute the site's content or tools without permission.

Changes

We may update these terms and the calculators' underlying figures as standards and products change. Continued use of the site constitutes acceptance of the current terms.