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Brick Calculator

Estimate how many bricks a wall needs from its length and height.

Your numbers

ft
ft
%

Bricks needed

567

Wall area
80 sq ft

Results are estimates for planning. Check important figures with a qualified professional.

Quick answer

The Brick Calculator shows number of bricks for a wall, with mortar joints and waste. How it works: Bricks = wall area × bricks per sq ft × (1 + waste). For example, with wall length of 20 ft, wall height of 4 ft, and bricks per sq ft of 6.75, the bricks needed is 567.

How to use the Brick Calculator

  1. Enter wall length.
  2. Enter wall height.
  3. Enter bricks per sq ft. About 6.75 for standard modular brick with 3/8 in mortar joints.
  4. Enter extra for waste. Adds a margin for cuts, spills, and uneven ground.
  5. Read bricks needed and the breakdown. Use Share to send the exact numbers, or Print to save a PDF.

How it's calculated

  • Bricks = wall area × bricks per sq ft × (1 + waste)

Worked example

With wall length of 20 ft, wall height of 4 ft, bricks per sq ft of 6.75, and extra for waste of 5 %:

Bricks needed: 567. Wall area: 80 sq ft.

Questions people ask

Single or double wall?

This is for one layer (wythe). Double it for a double-thick wall.