🔨 All Calculator Categories
200+ free construction calculators across 12 specialist categories. Every tool works instantly — no sign-up, no paywall.
🏗️
Concrete & Foundations
Volume, bag counts, cost estimates and reinforcement calculations for any concre...
25+ calculators
🧱
Masonry & Brickwork
Bricks, blocks, mortar, tiles and render — everything you need to estimate mason...
20+ calculators
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Timber & Framing
Studs, joists, rafters, decking boards and sheeting — accurate timber quantities...
20+ calculators
🏠
Roofing & Cladding
Roof area, tiles, metal sheets, battens, gutters and fascia — complete material ...
20+ calculators
🎨
Paint & Coatings
Paint coverage for walls, ceilings, roofs and exteriors — get accurate litre qua...
15+ calculators
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Earthworks & Landscaping
Excavation, gravel, topsoil, retaining walls and landscaping — quantities and co...
20+ calculators
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Plumbing & Drainage
Pipe sizing, flow rates, hot water, drainage falls and plumbing cost calculators...
15+ calculators
⚡
Electrical
Cable sizing, load calculations, circuit planning and electrical cost calculator...
15+ calculators
💰
Project Cost & Estimating
Markup, margin, quotes, break-even and job profit calculators — the essential to...
25+ calculators
👷
Labour & Productivity
Labour cost, hourly rates, crew cost, overtime and productivity calculators — kn...
15+ calculators
📐
Area, Volume & Geometry
Area, perimeter, volume, angles and unit conversions — the geometry tools every ...
15+ calculators
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Steel & Structural
Steel weight, rebar, beam sizing and structural calculators for fabrication and ...
15+ calculators