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Gallop DesignPractical calculators for better home projects
Masonry Tool

Brick Calculator

Estimate wall area, brick quantity, waste allowance and material cost.

Metric Calculator
1

Wall Dimensions

Enter the finished length and height of the wall.

m
m
2

Brick and Mortar

Enter the visible brick face dimensions and mortar joint.

mm
mm
mm
3

Allowance and Cost

Add waste allowance and optional price per brick.

%
Reset

How this calculator works

Wall area is calculated from wall length × wall height.

Brick coverage uses the visible brick length and height plus the mortar joint.

The wall area is divided by the effective brick face area to estimate the basic brick quantity.

Waste allowance is added before the final brick quantity is rounded upward.

Optional material cost is calculated from final brick quantity × price per brick.

BRICK PLANNING GUIDE

Plan Brick Quantities With Confidence

Use these six practical checks to understand the measurements, mortar allowance, waste and material cost behind your brick estimate.

01

Measure the Wall

Measure the finished wall length and height in metres. Accurate wall dimensions are the starting point for the entire estimate.

Wall area = Length × Height
02

Check Large Openings

The calculator uses the wall dimensions you enter. If large doors or windows should not be bricked, subtract their areas before ordering.

Adjusted area = Wall area − Openings
03

Include the Mortar Joint

Brick coverage depends on the visible brick face plus the mortar joint. Enter the dimensions that match the brick and joint used on site.

Effective face = (Brick length + Joint) × (Brick height + Joint)
04

Estimate Base Bricks

Wall area is divided by the effective brick face area. The result is rounded upward so a partial brick requirement becomes a whole brick.

Base bricks = ⌈Wall area ÷ Effective face area⌉
05

Add Waste Allowance

Extra bricks help cover breakage, cutting and normal site variation. Choose a waste percentage appropriate for the project.

Final bricks = ⌈Exact base × (1 + Waste ÷ 100)⌉
06

Estimate Material Cost

If you know the supplier price per brick, enter it to estimate the brick material cost. Other project costs remain separate.

Brick cost = Final bricks × Price per brick

Before You Order Bricks

Confirm the actual brick size, mortar joint, wall openings, bond or pattern, waste allowance and supplier pack quantities before purchasing.

This calculator provides a planning estimate. Site conditions, cuts, breakage and construction details can change the final quantity required.