Professional construction calculators for UK builders and tradespeople. Compliant with British Standards. No signup required.
Concrete, foundations, drainage, excavation and subbase calculators.
Bricks, blocks, cavity walls, render, lintels and mortar.
Tiles, flat roofs, fascia, guttering, flashing and insulation.
Stud walls, joists, doors, skirting, decking and fencing.
Cable sizing, circuits, consumer units, EV chargers and solar PV.
Boilers, cylinders, underfloor heating, pipe sizing and radiators.
Plasterboard, skim coat, dry lining, rendering and acoustic boards.
Wall tiles, floor tiles, laminate, carpet, vinyl and screeding.
Interior paint, exterior paint, wallpaper, stain and varnish.
Turf, gravel, driveways, fencing, decking and garden walls.
Fire alarms, asbestos, acoustic, steelwork and compliance.
Waste, labour, scaffold hire, plant hire and site welfare.
Unit conversion, mix ratios, steel weights, timber spans and U-values.
Calculate concrete needed for slabs, foundations and pads in m³ and bags.
Bricks per wall, mortar volume, pointing and bond type selection.
Cable size selection to BS 7671 — current capacity, voltage drop, grouping.
kW output by bedrooms, radiators and hot water demand.
Litres by room size, coats, primer and undercoat.
BTU output per room based on dimensions and insulation.
Packs, underlay, beading and expansion gap allowance.
Tiles per m², battens and underlay for pitched roofs.
Studs, plasterboard, insulation and noggins for timber partitions.
Posts, panels/boards, gravel boards and post mix.
Volume, tonnage, membrane and edging for gravel areas.
Plaster bags, corner beads, scrim and labour hours.
PlanScan AI reads your construction drawings and generates complete material schedules, quantities and cost estimates — automatically.
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