Construction resources · free estimating tools

Material calculators

Estimate concrete, asphalt, aggregate and limerock quantities using practical field-planning tools. Adjust dimensions and material assumptions to see updated results instantly.

Concrete Asphalt Aggregate & Base

Calculate construction materials

From dimensions to quantities

These are preliminary planning estimates, not engineered takeoffs or material orders. Verify thicknesses, field conditions, densities and project requirements before purchasing.

Concrete Calculator

Slabs, driveways, sidewalks and pads. Enter the area and thickness; we add waste and convert to cubic yards and bags.

Length (ft)Width (ft)Thickness (in)Waste (%)

Rule of thumb: 4 in. for sidewalks and patios, 6 in. for driveways and commercial, 8 in. for dumpster pads and heavy trucks.

Cubic yards to order

80 lb bags

60 lb bags

Ready-mix trucks carry 9 to 10 cubic yards. Under 2 yards, bags are usually cheaper; over that, order a truck. Short-load fees apply under about 4 yards.

Asphalt Calculator

Driveways, parking lots and overlays. Converts area and compacted thickness to tons of hot-mix asphalt.

Length (ft)Width (ft)Compacted thickness (in)Waste (%)

Compacted density

Residential driveways: 1.5 to 2 in. over base. Parking lots: 2 to 3 in. Streets: 2 lifts of 1.5 to 2 in. Mill-and-overlay: match the milling depth.

Tons to order

Square feet

Square yards

Asphalt is sold by the ton and placed hot. Plants need a minimum order (often 5 to 10 tons) and loads are 18 to 22 tons per truck.

Aggregate & Base Calculator

Limerock base, #57 stone, sand and fill. Converts area and depth to cubic yards and tons for the material you pick.

Length (ft)Width (ft)Depth (in)Compaction / waste (%)

Material

Florida base: 6 in. limerock under driveways, 8 in. under parking lots, 12 in. under streets. Add 15 to 20% for compaction.

Tons to order

Cubic yards (loose)

Truckloads (18 t)

Tandem dump trucks carry about 18 tons; tri-axles about 22. Limerock in Miami-Dade is sold by the ton; sand and rock sometimes by the yard.

Results are estimates only. Material properties, delivered volumes, compaction, mix design and truck capacities vary. For contract work, use project specifications and verified takeoffs.

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Construction crew performing asphalt restoration on a South Florida worksite