Chimney Brick Calculator
Enter your size to get chimney brick quantity, plus an estimated cost. Waste is included and prices are editable.
Material needed
Estimated cost
How to calculate chimney brick
Chimney bricks at about 7 bricks per square foot of wall area, with waste.
Formula: quantity = area × 7 × (1 + waste %) = 100 × 7 × 1.10 = 770 bricks.
Worked example
Example: 10 ft × 10 ft = 100 sq ft. Quantity: 770 bricks, about $385 at $0.5 per bricks.
Tips
Measure the full area, then subtract large openings if you want an exact count. Order a little extra for cuts and breakage, and confirm quantities with your supplier before you buy.
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Frequently asked questions
How much chimney brick do I need?
Example: 10 ft × 10 ft = 100 sq ft. Quantity: 770 bricks, about $385 at $0.5 per bricks.
How much waste should I add?
Add 10% for straight areas and 15% for areas with many cuts, corners and openings.
Are the prices accurate?
Prices are editable estimates. The defaults are typical US figures, and your local price can be higher or lower.