Material Takeoff is built and maintained by Johan Gallo, a software developer. I built the first version — the paint calculator — for my own project, after getting tired of guessing at gallons and either running short mid-coat or buying a bucket I didn't need. The other four (tile, concrete, brick & block, mulch/gravel/soil) followed the same way: each one solves a specific "how much do I actually need to buy" question I or someone close to me ran into while planning a home project.
Every calculator uses published industry waste factors and standard material dimensions (for example, a 3/8 in mortar joint on a nominal 8×8×16 CMU block, or a 21 sq ft deduction for a standard interior door). The formulas are shown in full on each calculator's page — nothing is a black box. Default unit prices are typical U.S. big-box retail prices as of 2026; you can edit every price field to match your local supplier.
It's not a substitute for a licensed contractor, a structural engineer, or your local building code. The calculators give you a solid planning estimate to take to the store or to a quote conversation — always confirm final quantities and any structural requirements with a professional before you build.
This site is free and has no paywall, account, or newsletter. It's supported by display ads and Amazon affiliate links (clearly marked) on relevant product recommendations. Neither one changes what the calculators tell you to buy.
Found a formula that looks wrong, or have a calculator you wish existed? See the contact page.