Materials estimator

If you know area in square feet and depth in inches, cubic yards is \((\text{sq ft} \times \text{depth in}) / 324\). That’s not magic — it’s \(27\) cubic feet per cubic yard and \(12\) inches per foot multiplied together.

Paint isn’t “350 sq ft per gallon” like it’s gravity. Texture, porosity, roller nap, and how aggressively you back-roll can swing coverage a lot. Good calculators show a default and let you override it.

Gravel is sold by volume (cubic yards) and by weight (tons). Those aren’t interchangeable without density. “Same volume” can weigh very different amounts depending on rock type, moisture, and compaction.

Most “irregular” spaces aren’t mysterious shapes — they’re just multiple rectangles with a story. Breaking a room into pieces is the fastest way to measure without lying to yourself.

Start with the material you’re buying. If you’re painting walls, use the paint estimator (it handles wall height, coats, and openings). If you’re buying bulk material like gravel or mulch, use the depth-based calculators that output cubic yards and bags/tons.

Most estimators include a default waste/overage you can change. If you already know you’re doing a simple rectangle with minimal cuts, turn it down. If you’re working around lots of edges, curves, or mistakes-in-the-dark, turn it up.

We can estimate cost if you enter your unit price (like $/gallon or $/bag). We don’t fetch live prices because they vary by brand, store, and region — and because “accurate” live pricing becomes inaccurate the moment you switch products.

Because stores sell discrete units. The raw math might say 9.2 gallons, but you can’t buy 0.2 gallons. A good estimate shows both: raw quantity and rounded purchase plan.