About Home Project Materials

Home Project Materials is an independent website that gives homeowners free, simple calculators for planning a project: how much paint, concrete, mulch, flooring or tile to buy.

How we build the tools

Each calculator uses standard coverage rates and basic geometry, and explains its formula on the page so you can check the math yourself. Where prices matter, you enter your own local price instead of relying on a national average that may not match your store.

Keep in mind

The results are planning estimates, not professional advice. See our terms and disclaimer. Found a mistake or have a calculator idea? Contact us.