Affiliate and advertising disclosure

Last updated 2026-10-19.

JobsiteCalc has no affiliate links and no ads today. No company pays us to appear on the site, and no calculator result is influenced by a seller.

In future

To keep the calculators free, the site may later use affiliate links (for example, to a retailer selling concrete mix or lumber) and display advertising. If we use affiliate links, we may earn a commission when you buy through them, at no extra cost to you. Pages with affiliate links will say so near the link, and this page and the privacy policy will be updated first.

What will not change

Formulas, defaults and sources are chosen for accuracy, not for any seller. Bag yields, densities and coverage figures will keep citing the manufacturer or public source they come from.

Questions: see the contact page.