Terms of Service

Last updated: 2026

Using this site

StoneCalc provides free construction and landscaping material calculators for educational and informational use. No account or sign-up is required, and there is no charge to use any page on this site.

Not a contractor's quote

The calculations on this site use standard, published geometry and industry rule-of-thumb material density and coverage figures, not original research or a site-specific assessment. They are planning estimates, not a substitute for a real quote or measurement from a supplier or licensed contractor. Real material needs vary with site conditions, exact product specifications, and installation method -- verify any number here before ordering material or signing a contract based on it.

No warranty

This site is provided "as is," without warranty of any kind, express or implied, including but not limited to accuracy, reliability, or fitness for a particular purpose. Use of any calculator or content on this site is at your own risk.

Limitation of liability

To the fullest extent permitted by law, StoneCalc and its operator are not liable for any loss or damage arising from use of, or reliance on, this site or its content -- including material overages, shortages, or project costs based on a calculator's estimate.

Advertising

This site may display ads served by Google AdSense and other third-party advertising networks. See the Privacy Policy for details on how those networks use cookies and similar technologies.

Content

The text, design, and code on this site belong to StoneCalc unless otherwise noted. You're welcome to link to any page here; please don't republish or scrape the content wholesale without permission.

Changes

These terms may be updated from time to time. Continued use of the site after a change means you accept the updated terms.

Contact

Questions about these terms? Reach out at hello@stonecalc.com.