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Project Cost Math

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Concrete slabs, fences and deck boards with material cost.

Concrete Slab CalculatorEstimate concrete for a slab in cubic yards or 80 lb bags, with cost.
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Project Cost Math

Free, transparent material and cost calculators for home and yard projects.

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Quantities use the formulas shown on each page; prices are typical US assumptions, optionally adjusted with public BEA regional price data or replaced with your own prices. They are rough estimates, not 100% accurate, not a guarantee and not financial advice; actual costs vary by supplier, location and project. Project Cost Math is independent and not affiliated with any retailer, manufacturer or government agency. © 2026 Project Cost Math.