Construction Calculators South Africa
Plan material quantities and project budgets with clear inputs, formulas and worked examples. Choose the calculator for the part of your project you are measuring.
Most used
Brick Calculator South Africa
Use this brick calculator for South Africa to estimate stock or face bricks from wall sizes, openings, mortar joints and waste. Add unequal wall sections.
Concrete Calculator South Africa
Use this concrete calculator for South Africa to estimate cubic metres, litres or cubic yards for slabs, foundations and post holes. Add separate sections.
Foundation Calculator South Africa
Calculate foundation concrete in South Africa from measured strips, pads or raft sections. Add your quoted costs and check a rectangular set-out diagonal.
Tile Calculator South Africa
Calculate floor, wall or mosaic quantities in m² or square feet. Check waste, tiles, sheets and full boxes using your product coverage.
Bricks and walls
Brick Calculator South Africa
Use this brick calculator for South Africa to estimate stock or face bricks from wall sizes, openings, mortar joints and waste. Add unequal wall sections.
Block Brick Calculator South Africa
Use this block brick calculator for South Africa to estimate masonry units from measured walls and openings. Compare actual unit coverage and full-pack.
Brick Mortar Calculator South Africa
Estimate brick mortar, cement and sand, premix bags or thin brick product bags. Enter confirmed rates for stock or maxi bricks in South Africa.
Brick Wall Calculator South Africa
Calculate single or double-skin wall bricks and costs using your quotes. Check maxi or cement brick coverage and download results as an Excel-ready CSV.
Brickforce Calculator South Africa
Calculate brickforce metres, full rolls and quoted cost. Enter specified layers, roll length and lap allowances, then compare the same product and size.
Sand and Cement Calculator South Africa
Estimate cement bags and sand for plaster, screed or brickwork from area, wet volume or brick count. Enter your mix ratio, assumptions and quoted prices.
Maxi Brick Calculator South Africa
Calculate maxi bricks, waste and full pallets for your wall. Confirm actual dimensions or coverage and estimate material cost from your unit or pallet quote.
Concrete and foundations
Concrete Calculator South Africa
Use this concrete calculator for South Africa to estimate cubic metres, litres or cubic yards for slabs, foundations and post holes. Add separate sections.
Foundation Calculator South Africa
Calculate foundation concrete in South Africa from measured strips, pads or raft sections. Add your quoted costs and check a rectangular set-out diagonal.
Concrete Slab Calculator South Africa
Calculate slab concrete volume, premix bags or quoted costs from rectangles, triangles, circles or known area. Check sub-base volume and rectangle diagonals.
Premix Concrete Calculator South Africa
Calculate premix concrete bags from project dimensions and confirmed finished yield. Check packs, coverage at your depth and material costs from your quote.
Cubic Metre Calculator South Africa
Calculate m³ from dimensions or area and depth. Convert litres, cm³ and cubic feet, then check coverage, wheelbarrows, mass or cost using your own inputs.
Concrete Bags Calculator South Africa
Calculate concrete premix bags from finished volume, or convert existing bags to m³. Check declared yield, packs, coverage and your quoted bag price.
Rebar Weight Calculator South Africa
Calculate nominal rebar kg per metre, mixed schedules and tonnes. Use diameter or supplier kg/m, optional quotes and CSV export for Excel.
Excavation Volume Calculator South Africa
Calculate soil excavation in m³ for boxes, sloped trenches and rectangular pits. Separate bank and loose volumes, optional truck loads and quoted costs.
Finishes
Tile Calculator South Africa
Calculate floor, wall or mosaic quantities in m² or square feet. Check waste, tiles, sheets and full boxes using your product coverage.
Floor Tile Calculator South Africa
Calculate floor tiles and full boxes in m² or square feet. Record your pattern, choose waste and estimate costs from current South African quotes.
Plaster Calculator South Africa
Estimate wall plaster area, cement and sand or complete product bags. Enter thickness, openings, coverage and quotes, then download a CSV for Excel.
Paint Calculator South Africa
Calculate paint for rooms, walls, ceilings, roofs and fences. Use product coverage, separate primer, coats and tin sizes, with optional quotes and CSV.
Drywall Stud Calculator
Estimate drywall studs and tracks from wall dimensions, spacing and waste.
Screed Calculator South Africa
Calculate floor screed volume, sand and cement or self-levelling product bags. Enter area, thickness, product consumption and optional quotes.
Laminate Flooring Calculator South Africa
Calculate laminate flooring boxes in m² or square feet, separate underlay rolls and quoted costs. Use actual box coverage and multiple room measurements.
Skirting Board Calculator South Africa
Estimate skirting metres, doorway deductions and stock lengths. Use a room budget or measured cut-list allocation with trims, kerf and entered costs.
Outdoor projects
Paving Bricks Calculator South Africa
Calculate paving bricks, interlocking pavers and full pallets from m² or dimensions. Add waste and use your supplier’s coverage for South Africa.
Decking Board Calculator South Africa
Estimate decking rows, full stock boards, spare material and quoted costs. Use actual board widths, specified side gaps and a checked fixing schedule.
Fence Material Calculator South Africa
Estimate fence posts, panels, mesh rolls or pickets by separate runs. Check shared endpoints, optional scheduled concrete and wire, and entered costs.
Retaining Wall Block Calculator South Africa
Estimate retaining wall blocks for straight walls, circles and arcs. Count body courses, buried units, separate caps, full packs and entered costs.
Roofing
Roof Tile Calculator South Africa
Calculate roof tiles, full packs and quoted costs from sloping m² or plan area and pitch. Enter product coverage and optional ridge or hip accessory data.
Roof Cost Calculator South Africa
Build a roof budget from measured area and current quotes. Include materials, labour, replacement costs, access, VAT and contingency in South Africa.
Ceiling Board Calculator South Africa
Estimate ceiling sheet boards or PVC panel rows using exact product dimensions, effective cover, cutting allowance, pack sizes and optional quotes.
Roof Pitch Calculator South Africa
Calculate roof pitch from rise and run, degrees, percentage slope or a 6:12-style ratio. Check geometric slope length and optional roof area.
Roofing Sheet Calculator South Africa
Estimate roofing sheets using effective cover, slope run and specified end laps. Calculate whole sheets, spares, packs and quoted IBR or metal costs.
Ceiling Insulation Calculator South Africa
Calculate ceiling insulation rolls or packs from measured areas and actual product coverage. Separate layer quantities, R-value references and entered costs.
Water
Gutter and Downpipe Calculator South Africa
Estimate gutter and downpipe stock lengths by run, spare material, scheduled fittings and quoted costs. Add an optional rainfall inflow estimate.
Water Tank Capacity Calculator South Africa
Calculate water tank capacity in litres and m³ for rectangular, vertical round and horizontal tanks. Compare full, current and accessible water volumes.
Rainwater Harvesting Calculator South Africa
Estimate roof rainwater collection, first-flush diversion, tank overflow and demand from an entered rainfall-event sequence in South Africa.
Which measurements should I use?
Use measured dimensions and the exact product coverage or size. For roof tiles, use installed coverage rather than overall dimensions.
Are material prices included automatically?
No. Enter current supplier quotes where the tool offers costs. Example dimensions and coverage are illustrations, not product specifications.
Does a quantity estimate confirm structural suitability?
No. Confirm structural dimensions, specifications and installation requirements with the responsible professional or supplier.