Terms of Use

The calculators give estimates based on the measurements you enter and the published figures we name. Real materials vary: stone weighs more when wet, and bag yields are approximate.

Check amounts with your supplier before you order, and follow your local building codes. You're responsible for the measurements you enter and the decisions you make.

The site is provided as is, free of charge. We work to keep it accurate, but we don't promise it is free of errors or always available.

To the extent the law allows, we aren't liable for losses that come from using the site, including ordering too much or too little material.

Product and company names, such as Quikrete, Sakrete and Pavestone, belong to their owners. We name them to credit their published figures. We aren't affiliated with or endorsed by them.

The calculators, guides and tables on this site are ours. You're welcome to print results and share links. Please don't copy whole pages to another site.

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

Needed before launch: the state whose law governs these terms

Needed before launch: a real contact email address

Or use the contact page.