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Quick answer

How Many Bricks per Square Metre?

For standard UK bricks (215 × 102.5 × 65mm) laid with 10mm mortar joints.

Page last reviewed 26 October 2026 by the UkToolCalc team

60 bricks per m² for a single-skin (half-brick) wall, and 120 per m² for a double-skin (one-brick) wall. Buy about 66 per m² to allow 10% for cuts and breakages.

Work out your own in the Brick calculator
  • 60bricks per m², single skin
  • 120bricks per m², double skin
  • 13.3courses per metre of height
  • +10%extra for cuts and breakages

Bricks for 1–20m² of wall

Figures include 10% for cuts. Mortar is a 4:1 building sand and cement mix.

Wall areaSingle skin bricksCement / sandDouble skin bricksCement / sand
1 m²661 bag / 0.05 t1321 bag / 0.10 t
5 m²3303 bags / 0.24 t6605 bags / 0.48 t
10 m²6605 bags / 0.48 t1,3209 bags / 0.97 t
20 m²1,3209 bags / 0.97 t2,64018 bags / 1.94 t

How to work out your wall area

Wall area = length × height − doors, windows and gates Bricks = wall area × 60 (or 120) × 1.1

Example: a wall 4m long and 1.5m high is 6m². In single skin that's 6 × 60 = 360 bricks, plus 10% = 396 bricks.

The brick calculator does this for any size and adds the cement, sand and an estimated cost. For the footing under the wall, use the foundation calculator.

Frequently asked questions

Why 60 bricks per m² and not 59?

Each brick plus its 10mm joints covers 225 × 75mm of wall face, which is 59.26 bricks per m². The trade rounds this up to 60, and you add 5–10% on top for cuts and breakages.

How many bricks per m² in a cavity wall?

The brick outer leaf is still 60 bricks per m². The inner leaf is usually 100mm blockwork at 10 blocks per m², tied across the cavity with about 2.5 wall ties per m².

How much mortar per m² of brickwork?

About 54kg of dry mortar per m² of single-skin wall: roughly 44kg of building sand and 10kg of cement in a 4:1 mix. A double-skin wall needs about twice as much.

Related calculators

Brick CalculatorBricks, cement and building sand for single, double and cavity walls. Mortar CalculatorCement, sand and lime for any number of bricks or blocks. Concrete Block Calculator100mm, 140mm & 215mm blocks per m², plus mortar. Brick, Mortar & Sub-Base GuideBricks per m², mortar quantities, BBQ firebricks and MOT Type 1 bulk bag coverage.