Terms of use

Planning estimates only

The calculators and guides provide general planning estimates. Results are not supplier quotes, engineering designs, construction specifications, or guarantees of delivered quantity, cost, coverage, or project performance.

User responsibility

You are responsible for verifying measurements, material specifications, density, price, delivery rules, site conditions, permits, codes, drainage, and structural requirements with appropriate local suppliers and professionals.

No professional relationship

Use of the site does not create an engineer-client, contractor-client, or other professional relationship.

Availability and accuracy

The site may be changed, corrected, or unavailable without notice. Reasonable care is taken with formulas and explanations, but errors and outdated information may occur.

Acceptable use

Do not misuse the site, interfere with its operation, attempt unauthorized access, or use automated traffic in a way that degrades service for others.

Contact

Send questions about these terms to info@gravel-calculator.org.