Plan2Roof

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Building materials list for a house, stage by stage

A house is built, and bought, in stages: foundation, walls, roof, then plaster and finishes. For a typical 120 m² 3-bedroom house that means about 23 500 bricks, about 220 bags of cement and about 19 loads of sand, stone and fill before the roof goes on. Here is the full list for that example house.

The quantities below are for an example house: about 120 m², 220 mm walls, a flat stand, local stock bricks and a hipped roof with concrete tiles. They include 10% waste on bricks, cement, sand and stone. Sand, stone and fill are shown in 6 m³ truck loads, the way most suppliers sell them; cement in 50 kg bags.

Stage 1: Foundation

Dig, cast the strip footings, build up to slab level, fill and cast the surface bed.

MaterialExample house
Trench excavation25.7 m³
Strip footing concrete (600 x 250 mm)11.7 m³
Foundation bricks4 609
Cement (footings, surface bed, mortar)168 bags (83 + 72 + 13)
River sand (concrete)2.6 loads (6 m³)
Stone 13/19 mm2.7 loads (6 m³)
Building sand (foundation mortar)0.45 loads (6 m³)
Fill G5 under the slab11.2 loads (6 m³)
DPM 250 micron2 rolls
Foundation brickforce5 rolls
Optional on normal soil: slab mesh Ref 193 and footing steel10 sheets, 29 rods

Stage 2: Walls up to the wall plate

Brickwork, brickforce, lintels over the doors and windows, DPC and the wall plate.

MaterialExample house
Wall bricks18 872
Cement (wall mortar 1:5)51 bags
Building sand (wall mortar)1.84 loads (6 m³)
Brickforce28 rolls
DPC 225 mm3 rolls
Precast lintels (1.2 m to 2.1 m)32 pieces
Wall plate 38 x 1149 lengths of 6 m

Stage 3: Roof

Trusses, battens and the roof covering. Concrete tiles are heavy: the trusses must be engineer designed.

MaterialExample house
Timber 114 x 38 (trusses)120 lengths of 6.6 m
Timber 38 x 38 (tile battens)85 lengths of 6.6 m
Double Roman concrete tiles1 880
Ridge and hip tiles97
Hoop iron (truss tie-downs)80 m
Nails and tile clipsabout 32 kg
Optional: roof underlay, fibre cement fascia189 m², 52 m

Stage 4: Plaster and finishes

Plaster inside and out, a floor screed, an apron around the house, steps and a fire wall to a double garage depend on what your plan shows. Our estimate reads them from your plan's notes and asks you about the rest.

Tips for buying

  • Buy stage by stage. Materials for later stages lying on site get stolen, damaged by rain, or tie up money you need now.
  • Get quotes on the same list. Give every hardware store or brickyard the same quantities, so you compare like with like.
  • Check your slope and soil first. On a medium slope the example house needs 7 242 foundation bricks instead of 4 609, and 18.7 loads of fill instead of 11.2. Clay that swells, dolomite or a steep stand needs an engineer.
  • Double storey? Only the ground floor follows these rules: the engineer designs the slab, beams and stairs.

How the bricks are counted: how many bricks do I need for a 3-bedroom house?

Get this list for your own house, stage by stage, as a PDF and a spreadsheet to take to your suppliers.

Get my materials list

These are material quantities, not a quote or a building plan. Your builder and, where needed, your engineer must confirm them for your stand and soil.