Construction Calculators

Estimate m³ and bags of concrete for any slab.

Liters of paint for a room with any coverage rate.

Number of tiles needed with waste allowance.

Shingle bundles required for a roof.

Standard 4×8 ft sheets for any wall area.

Bricks needed for a wall by size class.

Tons and m³ of gravel for any area & depth.

Steps, riser and run from total rise.

Cubic meters and 2-ft³ bags of mulch for any bed.

Heat loss through a wall from R-value and ΔT.

Volume, cubic yards & 40kg bags for a concrete slab.

Volume of concrete needed for a strip footing.

Volume of concrete needed for a poured wall.

Volume for round or rectangular concrete columns.

Concrete volume for a driveway slab.

Concrete volume for a patio slab.

Concrete volume for stacked poured steps.

Bags of cement needed from a concrete volume.

Sand volume & weight from a mix ratio.

Mortar bags needed for a wall area.

Grout volume & weight for tile joints.

Standard 8x16in blocks needed for a wall.

Pavers needed for a patio or walkway area.

Topsoil volume & weight for an area & depth.

Excavation volume in m³ and cubic yards.

Trench volume for length, width & depth.

Concrete volume for a foundation wall by perimeter.

Rebar pieces needed for a two-way grid.

Total rebar weight by bar size & quantity.

Steel weight from volume and density.

Max bending moment & shear for a simple beam.

Load per joist from tributary width.

Total roof load from dead and live loads.

Design snow load using simplified ASCE 7 method.

Wind force on a surface from speed & drag coefficient.

Total board feet for a lumber order.

Board feet for a single piece of lumber.

Wall studs needed with corners & openings.

Number of floor joists for a span.

Number of rafters for a roof length.

Roof pitch (x:12) and angle from rise & run.

Rafter length from rise and run.

Hip rafter length for a hip roof.

Gable end triangular area.

True roof area from footprint area and pitch angle.