Brick Calculator — How Many Bricks?
Calculate how many bricks and mortar bags you need for any wall, veneer, or patio project. Enter your wall dimensions, brick size, and mortar joint to get an accurate material estimate.
Enter Dimensions
Standard is 3/8 in (0.375)
Results
Bricks Needed
1,207bricks
Mortar Bags (60 lb)
35bags
Type S mortar, ~35 bricks/bag
Wall Area
160sq ft
Bricks per Sq Ft
6.86bricks/sq ft
Editorial Standards
Each calculator is reviewed for formula accuracy, unit consistency, and alignment with current U.S. building practices before publication. We verify outputs against published engineering references and real-world project data. Learn more about our methodology.
Brick is ordered by the unit and delivered by the pallet — which means a rough estimate can leave you short on the last course or sitting on a half-pallet you paid restocking fees to return. Get the count right once and make a single call to the supplier.
The count comes down to brick face size and mortar joint thickness. Standard modular bricks (3-5/8 × 2-1/4 × 7-5/8 inches) are the most common in North America with a 3/8-inch joint. Smaller queen size and larger utility bricks cover different face areas, so the per-square-foot factor changes. Mortar runs about one 60-pound bag per 20–25 standard bricks at a 3/8-inch joint.
Specialized Versions
How the Brick Calculator Works
The calculator determines the effective face area of each brick by adding one mortar joint to both the length and height: (brick length + joint) × (brick height + joint). Wall area divided by this effective face area gives the raw brick count, then the waste factor is applied.
Brick Count Reference (Standard Modular, 3/8 in Joint)
| Wall Size | Area (sq ft) | Bricks (0% waste) | Bricks (10% waste) |
|---|---|---|---|
| 10 × 8 ft | 80 | 540 | 594 |
| 20 × 8 ft | 160 | 1,080 | 1,188 |
| 40 × 8 ft | 320 | 2,160 | 2,376 |
| 50 × 10 ft | 500 | 3,375 | 3,713 |
Values based on standard modular brick (7⅝ × 2¼ in) with 3/8-inch mortar joints, yielding approximately 6.75 bricks per square foot.
Pro Tips
- Order from a single production run. Brick color varies between kiln batches. Order all bricks for a project at the same time from the same batch to avoid visible color variation between sections of the wall.
- Soak bricks before laying in hot weather. Dry bricks in direct sun absorb water from the mortar too quickly, weakening the bond. Dampen bricks lightly before laying when temperatures exceed 90°F or conditions are dry and windy.
- Dry-lay the first course before mortaring. Lay the full first course without mortar to check spacing and locate cut bricks at corners. Adjust joint width slightly (within 1/16 inch) to minimize cuts before committing to mortar.
- Use a story pole for consistent course heights. A story pole (a marked board showing each course height) keeps horizontal joints level across the full wall and prevents the cumulative drift that causes a non-level wall cap.
Common Mistakes
- Ignoring mortar joint thickness in the count. Reducing the mortar joint from 3/8 inch to 1/4 inch changes the effective brick face area and increases the brick count per square foot. Always enter your actual joint size, not just the default.
- Using face brick for structural cores. Face brick (FBX, FBS, FBA grades) is designed for veneer and exposed surfaces. It is not structurally equivalent to solid or cored structural brick — do not substitute face brick in load-bearing cores.
- Failing to account for window and door lintels. Brick arches or steel angle lintels above openings require a separate estimate. The brick count above the opening is not the same as the field calculation for the surrounding wall.
Brick Types, Grades, and Bond Patterns
Brick type and bond pattern both affect your count — different sizes mean different bricks-per-square-foot, and diagonal patterns need more waste for perimeter cuts.
Common Brick Sizes
| Brick Type | Nominal Size (L×H×W) | Actual Size | Bricks/sq ft (3/8″ joint) |
|---|---|---|---|
| Standard Modular | 8 × 2⅔ × 3⅝ in | 7⅝ × 2¼ × 3⅝ in | 6.75 |
| Queen | 8 × 2¾ × 3 in | 7⅝ × 2¾ × 2¾ in | 6.00 |
| Utility / Economy | 12 × 4 × 4 in | 11⅝ × 3⅝ × 3⅝ in | 3.00 |
| Norman | 12 × 2⅔ × 3⅝ in | 11⅝ × 2¼ × 3⅝ in | 4.50 |
Brick Grade by Weather Exposure
ASTM C62-23 (current edition) grades bricks by freeze-thaw resistance. Specify the correct grade to avoid premature spalling:
- SW (Severe Weathering) — foundations, retaining walls, any surface in contact with soil or standing water. Required in ASTM weathering index zones above 500 (most of the northern U.S.).
- MW (Moderate Weathering) — above-grade exterior walls not in direct water contact. Suitable for most of the mid-Atlantic and Pacific Coast.
- NW (Negligible Weathering) — interior partitions and veneer in dry climates. Not frost-resistant; avoid in any freeze-thaw environment.
Waste by Bond Pattern
Bond pattern affects cut brick quantity. Use these waste factors as your starting point:
- Running bond (stretcher course only) — 5–10%. Lowest waste; the standard for most residential projects.
- Flemish bond (alternating stretchers and headers) — 10–12%. Headers expose the short face, requiring more cuts at corners.
- Stack bond (vertical joints aligned) — 5–10% waste but structurally weaker; requires horizontal joint reinforcement (ladder wire) per code.
- Herringbone or diagonal — 15–20%. Significant perimeter cuts, especially for diagonal patterns set at 45°.
2025–2026 Brick Material Pricing
Brick prices vary significantly by region, style, and kiln source. The table below reflects U.S. retail and wholesale ranges (HomeGuide, 2025–2026):
| Brick Type | Per Brick | Per 1,000 Bricks | Notes |
|---|---|---|---|
| Standard clay brick | $0.40–$0.80 | $340–$850 | Most common; widest availability |
| Concrete brick | $0.45–$0.80 | $450–$800 | Consistent dimensions; lower cost |
| Thin / veneer brick | $0.90–$1.65 | $900–$1,650 | Adhered to substrate; lighter |
| Firebrick (refractory) | $1.70–$3.00 | — | Fireplaces, pizza ovens |
Budget an additional $300–$600 per 1,000 bricks for mortar, ties, and delivery. Energy costs and transportation continue to be the primary drivers of brick price variation by region — the Southeast typically runs 15–25% below coastal markets.
Frequently Asked Questions
How many bricks do I need per square foot?
Standard modular bricks (7⅝ × 2¼ in face) with a 3/8-inch mortar joint require 6.75 bricks per square foot.
What is a standard brick size?
The most common brick in the U.S. is the standard modular brick: 7⅝ × 3⅝ × 2¼ inches (actual dimensions). With a 3/8-inch mortar joint, this produces a 4 × 8-inch layout module. Other common sizes include the Norman (11⅝ × 2¼ in face) and the King (9⅝ × 2¾ in face).
How much mortar do I need for brickwork?
One 60-pound bag of Type S mortar covers about 35 bricks. For 700 bricks, budget 20 bags.
What waste percentage should I use for brick?
Use 10% waste for a straight wall with few cuts. Add 15–20% for walls with corners, arches, or window openings where bricks must be cut to fit. Waste bricks can also crack during handling and setting.
What is the difference between brick and CMU (cinder block)?
Bricks are solid fired-clay units used mainly for veneers and decorative walls. CMU (concrete masonry unit) blocks are hollow, load-bearing units used for structural walls. They are not interchangeable — use the Cinder Block Calculator for CMU projects.
Can I use this calculator for a brick patio or walkway?
Yes — enter the patio length as wall length and the patio width as wall height, then set wall height to 1 for a single wythe (one brick thick). The brick count will reflect paving bricks laid flat. For pavers, try our Paver Calculator instead.