How Many Bricks Do I Need for a Wall?
Estimating bricks starts with wall area, brick face dimensions and mortar-joint size. Because brick dimensions vary, the most accurate calculation uses the actual brick being installed.
Calculate bricks automatically
Enter wall dimensions, brick dimensions and waste to estimate the number of bricks you need.
Use the Brick Calculator Square Footage CalculatorStep 1: Calculate Wall Area
A wall 20 ft long and 8 ft high has an area of:
Step 2: Subtract Large Openings
If the wall contains doors or windows, calculate their areas and subtract them.
A 3 ft × 7 ft door is:
Usable brick area:
Step 3: Determine Brick Module Size
For wall calculations, mortar joints affect how much wall area each brick occupies.
A simplified installed module is:
Then calculate the installed module area.
Example Brick Calculation
Suppose a brick face is 7.625 inches long by 2.25 inches high, with an approximate 0.375-inch mortar joint.
The installed module becomes approximately:
Module area:
Convert to square feet:
The approximate number of bricks per square foot is:
Calculate Bricks for the Example Wall
Our wall area after subtracting the door is 139 ft².
With 10% extra:
How Much Waste Should You Add?
A small waste allowance can cover:
- Broken bricks
- Cut bricks
- Corner details
- Color selection
- Future repairs
Around 5% to 10% is commonly used as a planning range for straightforward work, although complex masonry can require more.
Brick Size Matters
There is no single universal brick size. Different regions and manufacturers use different formats.
Larger bricks require fewer units per square foot; smaller bricks require more.
Mortar Joint Size Matters
The mortar joint is part of the finished wall module.
Changing the joint thickness changes how many courses and bricks fit into the wall dimensions.
How Many Bricks Per Square Foot?
The answer depends on the brick dimensions and mortar joints.
Rather than relying on a universal number, calculate the installed module or use the manufacturer's published coverage data.
How Many Bricks in a Pallet?
Pallet quantity varies by brick size, manufacturer and packaging.
Once you know your required brick count:
Round upward if full pallets are required.
Brick Veneer vs Structural Masonry
A brick veneer wall and a structural masonry wall can have very different construction requirements.
The brick quantity calculation covers units only. It does not determine structural wall design.
How Much Mortar Do You Need?
Mortar quantity depends on brick dimensions, joint size, wall thickness and installation technique.
Use product-specific mortar coverage information rather than estimating solely from brick count.
Common Brick Estimating Mistakes
Using One Universal Bricks-per-Square-Foot Number
Brick formats vary.
Ignoring Mortar Joints
Installed coverage includes both brick and mortar spacing.
Not Subtracting Large Openings
Large windows and doors can significantly reduce wall area.
Buying the Exact Count
Broken and cut bricks create waste.
Mixing Production Lots
Color can vary between batches.
Calculate your brick quantity
Calculate BricksFrequently Asked Questions
How do I calculate bricks for a wall?
Calculate net wall area, divide by the installed coverage per brick and add a waste allowance.
How many bricks are in one square foot?
It depends on brick dimensions and mortar-joint size. Use the actual brick specifications for an accurate result.
Should I subtract windows and doors?
Large openings should generally be subtracted from wall area, while small openings may have less effect on the final order quantity.
How much extra brick should I buy?
About 5% to 10% may be suitable for many simple projects, but cuts and complex details can require more.