Construction Calculators
Concrete, materials, roofing, flooring, groundworks and setting-out calculators.
Concrete & Groundworks
▣Concrete Slab CalculatorCalculate concrete required for a slab.▣Footing Concrete CalculatorCalculate concrete for strip and rectangular footings.▣Concrete CalculatorCalculate concrete volume for slabs, footings, trenches and walls.▣Concrete Bags CalculatorEstimate bags of premixed concrete from volume and product yield.▣Post Hole Concrete CalculatorCalculate concrete needed for round post holes around square posts.▣Circular Concrete CalculatorCalculate concrete volume for circular slabs, pads and columns.▣Screed CalculatorCalculate screed volume from floor area and thickness.▣Hardcore / Sub-base CalculatorEstimate compacted sub-base volume and approximate mass.▣Gravel CalculatorEstimate gravel volume and mass from area and depth.▣Excavation Volume CalculatorCalculate rectangular excavation volume.
Brick, Block & Finishes
▣Brick CalculatorEstimate bricks required from wall area, openings and bricks per square metre.▣Block CalculatorEstimate concrete blocks required from wall and block dimensions.▣Mortar CalculatorEstimate mortar volume from wall area and a chosen mortar rate.▣Paint CalculatorEstimate litres and tins of paint required.▣Plasterboard CalculatorEstimate plasterboard sheets required from area and sheet size.
Flooring, Paving & Decking
▣Tile CalculatorCalculate tiles required from area, tile dimensions and waste.▣Flooring Pack CalculatorEstimate laminate or flooring packs required.▣Decking Board CalculatorEstimate decking boards and total linear board length.▣Paving Slab CalculatorEstimate paving slabs needed from area and slab dimensions.
Roofing & Setting Out
▣Roof Pitch CalculatorCalculate roof pitch angle from rise and horizontal run.▣Rafter Length CalculatorCalculate simple rafter length from rise, run and overhang.▣Slope / Gradient CalculatorConvert rise and run into gradient, ratio and angle.▣Drainage Fall CalculatorCalculate required fall over a drainage run from a 1-in-N ratio.▣3-4-5 Right Angle CalculatorScale the 3-4-5 triangle for setting out square corners.