Brick Calculator
The Brick Calculator estimates the total number of bricks required to build a wall based on wall dimensions and brick size. This calculator is designed to help homeowners, contractors, and DIY enthusiasts plan construction projects. Whether you are building a garden wall, a home addition, or a decorative border, this tool provides a reliable estimate of materials needed.
This calculator is for informational purposes only. Verify results with appropriate professionals for important construction decisions.
Use this free online Brick Calculator to calculate your total bricks required. Simply enter your wall dimensions and brick size to instantly get results in bricks count and square feet. This estimate helps you plan material purchases for construction projects.
How Total Bricks Required Is Calculated
The calculator finds the total bricks needed by dividing the wall area by the area of one brick face. First, the wall length and height are converted from feet to inches so all measurements use the same unit. Then, the wall area is calculated by multiplying length by height. The brick face area is found by multiplying the brick length by brick height, including the mortar joint. Finally, the wall area is divided by the brick face area to get the base brick count, which is then increased by the waste factor percentage.
Total Bricks = (Wall Area / Brick Face Area) x (1 + Waste Factor)
Where:
- Wall Area = Wall Length (in) x Wall Height (in)
- Brick Face Area = Brick Length (in) x Brick Height (in)
- Waste Factor = Extra percentage for breakage and cuts (converted to decimal)
This formula works well for straight rectangular walls with uniform brick sizes. The result is rounded up because partial bricks cannot be purchased.
What Your Brick Calculator Result Means
The total bricks number tells you how many bricks to purchase for your wall project. This estimate includes extra bricks for breakage and cuts based on the waste factor you entered. For example, a result of 1,200 bricks means you should buy 1,200 bricks to complete your wall. If you are building a small garden wall needing 300 bricks, you can purchase by the bundle or pallet depending on supplier options.
| Project Type | Typical Brick Count | Notes |
|---|---|---|
| Small garden border | 50-200 bricks | Short decorative walls |
| Garage wall | 400-800 bricks | Single car garage |
| House wall section | 800-1,500 bricks | Standard 20 ft wall |
| Full exterior wall | 2,000+ bricks | Large home project |
Always order a few extra bricks beyond the calculated amount to account for future repairs or mistakes during installation.
Accuracy, Limitations & Common Mistakes of the Brick Calculator
How Accurate Is the Brick Calculator?
The calculator provides a solid estimate for straight rectangular walls using standard bricks. The accuracy depends on entering correct brick dimensions that include the mortar joint thickness. Most standard modular bricks measure 8 inches long and 2.625 inches tall with mortar included. Using exact measurements from your brick supplier improves the estimate.
Limitations of the Brick Calculator
This calculator does not account for openings such as doors, windows, or vents. You must subtract these areas separately. The formula assumes a simple running bond pattern and does not calculate bricks for corners, columns, or decorative patterns. Non-rectangular walls require custom calculations. Professional consultation is recommended for structural walls or load-bearing applications.
Common Mistakes to Avoid
- Forgetting to include mortar joint thickness in brick dimensions, which leads to underestimating brick count
- Not subtracting window and door openings from the wall area before calculating
- Setting the waste factor too low, which may leave you short on materials for complex cuts
Frequently Asked Questions
Who is this Brick Calculator for?
This calculator is for homeowners planning DIY projects, contractors estimating materials, and anyone building small walls or borders. It works well for garden walls, property borders, and simple structural planning.
How often should I use this calculator?
Use this calculator whenever you are planning a new brick project or comparing material costs. It helps to recalculate if you change your wall dimensions or switch to different brick sizes.
Does this calculator work for all brick types?
Yes, the calculator works for any brick size as long as you enter the correct dimensions including mortar. Standard modular bricks, queen bricks, king bricks, and custom sizes all work with this formula.
Can I use this calculator for walls with doors and windows?
Calculate the wall as if it has no openings first. Then measure each door and window opening and subtract those brick counts separately. This gives you a more accurate total for the actual wall area.
Is the Brick Calculator free to use?
Yes, this calculator is completely free with no sign-up required. Use it on any device as often as needed for your projects.
References
- Brick Industry Association - Technical Notes on Brick Construction
- National Concrete Masonry Association - Estimating Guide
- International Building Code - Masonry Construction Standards
Calculation logic verified using publicly available standards.
View our Accuracy & Reliability Framework →