Home Improvement
Bricks per square foot
The number of bricks that fit in one square foot once mortar is counted.
The Formula
bricks per sq ft = 144 / ((L + j) x (H + j))
The number of bricks that fit in one square foot once mortar is counted.
| Symbol | Meaning | Unit | Notes |
|---|---|---|---|
| n | Bricks per square foot | bricks | How many bricks tile one square foot. |
| L | Brick length | inches | The length of the brick face. |
| H | Brick height | inches | The height of the brick face. |
| j | Mortar joint | inches | The thickness of the joint on every side. |
What Each Symbol Means
nbricks
Bricks per square foot
How many bricks tile one square foot.
Linches
Brick length
The length of the brick face.
Hinches
Brick height
The height of the brick face.
jinches
Mortar joint
The thickness of the joint on every side.
See It Worked With Real Numbers
A formula on its own does not tell you which number goes where. The how to calculate bricks needed page applies this equation to a concrete case, shows every intermediate step, and names the mistakes that produce a wrong answer even when the algebra is right.
Where This Formula Appears
This equation is the working core of How To Calculate Bricks Needed, filed under Everyday Life. Every number the guide produces comes from substituting into this one line.