Home Improvement
Counting by courses
The site method, useful for estimating and for checking the area method.
The Formula
courses = ceil(12 x height / (H + j)), bricks per course = ceil(12 x length / (L + j))
The site method, useful for estimating and for checking the area method.
| Symbol | Meaning | Unit | Notes |
|---|---|---|---|
| c | Courses | rows | The number of horizontal rows. |
| b | Bricks per course | bricks | The number along one row. |
| h | Wall height | feet | The height of the wall. |
| l | Wall length | feet | The length of the wall. |
What Each Symbol Means
crows
Courses
The number of horizontal rows.
bbricks
Bricks per course
The number along one row.
hfeet
Wall height
The height of the wall.
lfeet
Wall length
The length of the wall.
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.