Last updated August 15, 2026.
Mattally provides planning estimates. Results depend on the measurements and options you enter and on typical density, coverage and waste assumptions. Actual yield, weight, price and availability vary by product and supplier.
Confirm quantities with your supplier before ordering. Follow product instructions, local building codes and qualified professional advice for structural, safety-critical or permitted work.
You may use the calculators for personal or commercial project planning. Do not interfere with the site, attempt unauthorized access or reproduce the site as a competing service.
To the extent permitted by law, Mattally is not liable for purchases, project delays, shortages, excess material, property damage or other losses resulting from reliance on an estimate.