Terms of Use

Estimates only. The calculators give estimates. Real jobs differ, and the result may not match what you need or what a supplier delivers.
No warranty. The site and its calculators are provided as they are, without any promise that they are correct, complete or suitable for your job. We try to make them right and fix mistakes when we hear of them.
Your responsibility. Confirm quantities with your supplier and check local building codes before you buy or build. See the disclaimer.
Liability. To the extent the law allows, we are not responsible for loss or damage that comes from using the site.
Other sites. We link to sources outside this site. We do not control them and are not responsible for their content.
Changes. We may change the site or these terms at any time.