Brick Calculator: How Many Bricks Do I Need?
A standard modular brick wall needs about 7 bricks per square foot of wall face, using a 3/8 inch mortar joint. To size a job, multiply the wall length by its height in feet to get the area, multiply by 7, then add 5 to 10% for waste and cuts. Below is the formula, a brick size chart, how much mortar and how much it costs in 2026, plus a calculator that does the volume math for footings and slabs.
Key takeaways
- A standard modular brick (3 5/8 x 2 1/4 x 7 5/8 in) covers about 7 bricks per square foot with a 3/8 in joint.
- Bricks needed = wall area in square feet x 7, then add 5 to 15% for waste depending on the bond pattern.
- Larger bricks need fewer per square foot: queen about 5.8, king about 4.8, Norman about 4.5, utility about 3.
- Plan roughly one 80 lb bag of mortar per 30 to 36 bricks, or 6 to 7 bags per 100 square feet of wall.
- Face bricks run about 0.35 to 0.90 dollars each in 2026, and an installed single wythe wall runs about 10 to 25 dollars per square foot.
How many bricks per square foot you need
For the standard US modular brick with a 3/8 inch mortar joint, plan on about 7 bricks per square foot of wall face. A more precise figure is 6.75, but rounding up to 7 builds in a small buffer.
To find your total, measure the wall length and height in feet, multiply them to get the area, then multiply that area by 7. A 20 foot long wall 8 feet high is 160 square feet, which works out to about 1,120 bricks before waste.
Wall area (ft2) = Length(ft) x Height(ft)Bricks = Area(ft2) x 7 x 1.10 (waste)Subtract the area of any windows and doors before you multiply, then add the waste factor back on the net total. Running bond on a plain rectangular wall needs about 5 to 10% waste, while Flemish or English bond with cut bricks needs 10 to 15%.
Brick size chart and coverage per square foot
Coverage depends entirely on the brick size, since a larger face covers more wall with fewer units. The modular brick is the most common in the US at 3 5/8 by 2 1/4 by 7 5/8 inches actual, which is 4 by 2 2/3 by 8 inches nominal once the mortar joint is included.
| Brick type | Nominal face (H x L) | Bricks per sq ft |
|---|---|---|
| Modular | 2 2/3 x 8 in | 6.75 |
| Queen | 2 3/4 x 8 in | 5.76 |
| Norman | 2 2/3 x 12 in | 4.5 |
| King | 2 3/4 x 9 5/8 in | 4.8 |
| Utility | 4 x 12 in | 3.0 |
Dimensions vary slightly by manufacturer, so confirm the exact face size and units per square foot from the maker before ordering. Larger bricks like Norman and utility cut the brick count and the labor, but they change the look of the wall.
How much mortar do I need for the brickwork
As a rule of thumb, one 80 pound bag of pre-mixed mortar lays about 30 to 36 standard bricks, which works out to roughly 6 to 7 bags per 100 square feet of single wythe wall. For the 160 square foot wall above, that is about 10 to 12 bags.
Mortar type matters for structural walls. Type N suits most above grade veneer, while Type S is used where higher strength is needed, such as below grade or load bearing work, as set out in ASTM C270. For a separate breakdown by job, see how much mortar you need for brick and block.
If you mix your own from cement, sand and lime rather than buying bags, the volume math is the same idea as concrete: figure the joint volume, then convert. The concrete calculator handles cubic yards and bag counts for any footing or slab the brickwork sits on.
What bricks cost per square foot in 2026
Face bricks cost about 0.35 to 0.90 dollars each in 2026, or roughly 340 to 850 dollars per 1,000, with a typical average near 0.55 dollars per brick. Premium, handmade and reclaimed brick run higher, from about 0.80 up to 2.50 dollars or more each.
| Item | Typical 2026 price (US) |
|---|---|
| Single face brick | 0.35 to 0.90 dollars |
| Per 1,000 bricks | 340 to 850 dollars |
| Mortar (80 lb bag) | 8 to 15 dollars |
| Installed wall (single wythe) | 10 to 25 dollars per sq ft |
| Brick veneer installed | 7 to 22 dollars per sq ft |
For a full installed wall, including labor, ties and flashing, budget about 10 to 25 dollars per square foot for a single wythe wall, with many projects averaging near 25 dollars. Thin brick veneer is cheaper at roughly 7 to 15 dollars per square foot since it uses less material and lighter support.
Footings and the slab under a brick wall
A brick wall needs a stable base, usually a concrete footing or slab, and that pour is sized by volume in cubic yards rather than by brick count. A strip footing is length times width times depth, with the result divided by 27 to get cubic yards.
For a freestanding garden wall or a veneer on a foundation, the footing is often 12 to 16 inches wide and 8 to 12 inches deep, sized to the frost line and load. Enter the dimensions in the footing calculator to get the cubic yards and bag count without juggling unit conversions.
If you are pouring a slab base for a patio or shed that will carry brickwork, the same volume rules apply across the whole area. The guide on how much concrete you need walks through slabs, footings and columns with worked examples.
Tips to order the right number of bricks
The most common mistake is ordering exactly the calculated count with no buffer. Breakage in transit, cuts at corners and openings, and the odd damaged unit mean you should always add 5 to 15% and round up to the nearest full pallet, since bricks ship by the pallet of roughly 500.
The second mistake is mixing up wall layers. Confirm whether the wall is single wythe (one layer) or double wythe before you multiply, because a double wall doubles both the brick count and the mortar. Match the brick size to your chart row, since a queen or Norman brick changes the per square foot figure.
If you would rather not chase the conversions for the footing and slab volumes, the concrete calculator returns cubic yards, the number of 40, 60 and 80 lb bags, whether to order ready-mix, and an optional cost for the base the brickwork sits on.
Frequently asked questions
How many bricks do I need per square foot?
How do I calculate how many bricks I need for a wall?
How many bricks are in 100 square feet?
How many bricks does an 80 lb bag of mortar lay?
How much does a brick wall cost per square foot in 2026?
References
- Brick Industry Association: Technical Notes 10, Dimensioning and Estimating Brick Masonry
- Brick (Wikipedia)
- ASTM C216: Standard Specification for Facing Brick
- ASTM C270: Standard Specification for Mortar for Unit Masonry