Measure once. Buy right.

What MeasureQuik does

Every DIY project starts with the same unglamorous question: how much do I buy? Get it wrong in one direction and you're back at the store mid-pour with the truck running; get it wrong in the other and you own three bags of concrete for the next decade. The arithmetic itself isn't hard — area, depth, coverage rate — but the details are where people lose money: the waste factor on a diagonal floor, the pitch multiplier on a roof, the difference between a 60-pound and an 80-pound bag, the two windows you forgot to subtract.

These calculators handle those details. Each one takes real measurements from your project, applies the formula the trade actually uses, and hands back a shopping list in the units the store sells — bags, sheets, rolls, boards, bundles — already rounded up, because half a bag doesn't exist. Most also estimate what the job costs, with material and labor separated, so you can see what hiring it out would actually change.

Who it's for

Homeowners doing their own work, mostly: a weekend patio, a nursery repaint, a fence line, a mulch delivery, a roof you're pricing before you call anyone. The energy calculators are for the bigger decisions — whether a heat pump or solar actually pays back in your house at your rates, before a salesperson tells you it does. Small contractors use them for quick quotes, and some embed them on their own sites, which is free.

How the numbers are checked

Every calculator lists its references at the bottom of the page — manufacturer product data for bag yields and coverage rates, and industry or government sources for the rest: the Gypsum Association for drywall, the Department of Energy for insulation targets, the Asphalt Roofing Manufacturers Association for shingle math. When a source changes, the calculator changes with it and the review date on the page moves. That happened this year when the federal energy tax credits expired: four calculators had been quietly promising money that no longer existed, and all four were corrected the week it was caught. If you find a number that's wrong, tell us; verified corrections ship within days.

What we don't do: we don't give project-specific engineering advice, and a calculator is not a substitute for a permit, a soil test, or a licensed electrician. Where a job crosses that line — structural concrete, service-panel work, anything on a roof steeper than you'd comfortably walk — the page says so.