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ProjectCalc Hub

Plan your home project before you buy

Estimate materials, quantities, waste, and costs with practical calculators built for real home projects — with every assumption visible and a shopping list you can take to the store.

Deck materialsGravel drivewayConcrete slabFlooringPaintGenerator sizeAll 12 calculators →

Find your project

Every calculator estimates core materials, supporting supplies, waste, and cost — and explains how it got there.

Outdoor projects

Decks, fences, patios, driveways, slabs, and landscaping beds.

Surfaces & finishes

Flooring and tile — coverage, boxes, and setting materials.

Walls & interiors

Paint and drywall — gallons, sheets, and finishing supplies.

Project planning

Debris, disposal, and sizing decisions before work starts.

Power & equipment

Generator sizing and backup-power planning.

How it works

  1. Measure your project

    Enter dimensions in feet and inches. Each calculator tells you exactly which measurements to take and how.

  2. Get quantities with waste included

    See the base requirement, a sensible waste allowance you can adjust, and the whole-unit quantity to actually buy.

  3. Add local prices for a budget

    Enter store or supplier prices to build a cost estimate with materials, delivery, labor, and tax — then print or share it.

Estimates you can actually check

Most material calculators hand you a single number with no explanation. Every tool here shows the base quantity, the waste allowance (which you can change), and the recommended purchase quantity rounded up to whole bags, boards, boxes, or sheets — plus the formula and every assumption behind it.

Costs work with your local prices. Enter what your store or supplier charges and get an itemized estimate with materials, delivery, labor, and sales tax. No account needed, and calculator inputs stay on your device.

Results are planning estimates, not quotes. Site conditions, product dimensions, installation methods, and local building requirements vary — our methodology page explains exactly how each number is produced and where you should double-check.

Measurement guides

Good estimates start with good measurements. These short guides cover the basics:

All guides →