About BuildCalc

BuildCalc is built by a purchasing professional with roughly a decade of buying experience across IT hardware and residential renovation projects. The calculators exist because most online material estimators answer the easy question ("how much?") and skip the hard ones ("what do I actually put in the cart, and what will it cost?").

How quantities are calculated

Raw quantities use standard geometric formulas plus a waste allowance that reflects real installation practice: 5–10% for straight-lay floors and walls, 10–15% for diagonal or herringbone layouts, and 10% for tile on walls with many cuts around fixtures. Results are then rounded up to real packaging increments, because suppliers sell by the box, sheet, or pallet.

How prices are estimated

Budget ranges use a low / mid / high band derived from typical 2026 North American retail pricing for commodity and mid-grade materials, excluding labor, delivery, and tax. They are planning figures, not quotes. Regional pricing, brand choice, and order volume move these numbers by 30–50% in either direction.

What we do not do

No accounts, no email capture, no tracking pixels, no data collection. Every calculation runs in your browser. Nothing you type is transmitted anywhere.

Questions or a calculator you want built: hello@buildkitcalc.top