Brick Calculator
Calculate brick accurately for your build. Get material quantities, waste allowances, and project cost breakdowns. See charts, tables, and visual results.
Formula
Bricks = Wall Area (sq ft) × Bricks per sq ft × (1 + Waste%)
Calculate the wall area by multiplying length by height. Determine bricks per square foot using brick dimensions plus mortar joint thickness. Multiply the area by bricks per square foot, then add your waste percentage. Mortar is estimated at approximately 7 bags per 1,000 standard bricks.
Worked Examples
Example 1: Standard Garden Wall
Problem: Calculate bricks needed for a 20 ft long × 4 ft high garden wall using standard modular bricks with 3/8-inch mortar joints.
Solution: Area = 20 × 4 = 80 sq ft\nBricks per sq ft = 6.86\nBricks = 80 × 6.86 = 549 bricks\nWith 5% waste = 577 bricks\nMortar = (577/1000) × 7 = 5 bags
Result: 577 bricks, 5 bags mortar
Example 2: House Exterior Wall
Problem: Calculate bricks for a 50 ft × 10 ft wall using queen bricks with 3/8-inch mortar joints and 10% waste.
Solution: Area = 50 × 10 = 500 sq ft\nBricks per sq ft = 5.76\nBricks = 500 × 5.76 = 2,880 bricks\nWith 10% waste = 3,168 bricks\nMortar = (3168/1000) × 7 = 23 bags
Result: 3,168 queen bricks, 23 bags mortar
Frequently Asked Questions
How much mortar do I need for a brick wall?
Plan on approximately 7 bags (70 lbs each) of mortar per 1,000 standard bricks. For a single-wythe wall (one brick thick), that translates to roughly 1 bag per 142 bricks. The actual amount varies with joint thickness, brick size, and mason skill. A 3/8-inch joint uses less mortar than a 1/2-inch joint. Type N mortar is standard for above-grade walls, while Type S is used for below-grade and structural applications.
How much waste should I add to my brick estimate?
Add 5% waste for simple rectangular walls with minimal cutting. Add 10% for walls with multiple openings (doors, windows, arches) that require significant cutting. Add 15% for complex designs like herringbone or basket-weave patterns. Also buy an extra 2-3% to keep as replacement stock for future repairs. Bricks from different production batches can vary in color, so purchasing all needed bricks upfront ensures a uniform appearance.
Can I share or bookmark my calculation?
You can bookmark the calculator page in your browser. Many calculators also display a shareable result summary you can copy. The page URL stays the same so returning to it will bring you back to the same tool.
Is Brick Calculator free to use?
Yes, completely free with no sign-up required. All calculators on NovaCalculator are free to use without registration, subscription, or payment.
Can I use Brick Calculator on a mobile device?
Yes. All calculators on NovaCalculator are fully responsive and work on smartphones, tablets, and desktops. The layout adapts automatically to your screen size.
How accurate are the results from Brick Calculator?
All calculations use established mathematical formulas and are performed with high-precision arithmetic. Results are accurate to the precision shown. For critical decisions in finance, medicine, or engineering, always verify results with a qualified professional.