Brick Calculator
Estimate how many bricks you need for a wall by area, brick type, and waste percentage.
Your Brick Estimate
- Measure wall length and height — use the finished face dimensions of the wall section.
- Select brick type — brick size affects bricks per square foot; mortar joints are built into the estimate.
- Set waste factor — 10% is typical; increase for corners, arches, and many openings.
- Round up and batch order — brick color lots can vary, so buying extra up front helps matching later.
How Many Bricks Do I Need?
Brick quantity is estimated from wall area and the number of bricks per square foot for your brick size. Most quick estimates assume standard mortar joints and use an area-based rate (for example, modular brick is commonly estimated at about 7.5 bricks per square foot).
To estimate bricks, compute wall area (length × height), apply a waste factor for cuts and breakage, then convert square feet to bricks using the selected brick type rate.
Quick Reference: Modular Brick (≈ 7.5/ft²)
Waste and Breakage Guidelines
Waste covers cut bricks at edges, damaged pieces, and layout adjustments. Simple straight runs can use 7–10%. Jobs with many corners, windows/doors, or decorative patterns often need 12–15%.
Typical Waste by Layout
Formulas Used in This Calculator
Brick quantity calculation:
1 = Adjusted area = base area × (1 + waste %)
2 = Bricks needed = adjusted area ÷ (ft² per brick)
3 = Example (modular): ft² per brick ≈ 0.1333 (≈ 7.5 bricks/ft²)
Related Calculators
Brick needs mortar mix and a concrete footing. Browse the construction calculator collection.
Frequently Asked Questions
Does this include mortar?
This estimate focuses on brick count. Mortar usage depends on joint thickness, wall thickness, and job technique. Use the brick count as your primary ordering reference.
Why do different brick types change the count?
Larger bricks cover more wall area per piece, so you need fewer bricks per square foot. The calculator uses typical “bricks per ft²” rates for common brick sizes.
Should I buy extra bricks?
Yes. Even careful installs break bricks and require cuts. Ordering 10–12% extra is typical, and it helps protect you from future color-lot differences.
How many bricks do I need per square foot?
Standard modular bricks (3⅝ × 2¼ × 7⅝ inches) laid in a running bond pattern cover approximately 6.75–7.5 bricks per square foot of wall face, depending on mortar joint thickness. A standard 3/8-inch mortar joint is most common. Larger bricks like queen size or utility cover fewer bricks per square foot.
What is the difference between brick and block?
Bricks are solid or cored clay units typically used for facing and decorative walls. Concrete blocks (CMU) are larger, hollow, and used for structural walls and foundations. For most residential face-brick walls, standard modular brick is the right material. Blocks are faster to lay for structural work but require additional finishing if used for exterior faces.