A short presentation covering how to calculate wall heights and lengths for half brick walling

1. Half Brick Walling
Basic Calculations
Stonemasonry Department 2012

2. How Many Courses?
Using the brickwork dimension 8
table provided by your course
7
tutor, you can identify how
many courses of brick 6
are required to build a 5
600mm
525mm
brick wall of a
4
450mm
specific height.
375mm
3
300mm
2
225mm
150mm
75mm
1

3. Activity 1
Without using the brickwork dimension table complete the table below
No.of Courses Height (mm)
75
3
300
6
7
675
12

4. How Many Bricks Long?
Similarly you can quickly identify how many bricks are required to build
a wall of a specific length.
215mm
440mm
665mm
890mm
1115mm
1340mm
1 2 3 4 5 6

5. Activity 2
Without using the brickwork dimension table complete the table below
No.of Bricks Length(mm)
1
3
900
6
7
2025
12

6. A Square Metre of Brickwork
1m
1m
In every square metre of half brick walling there are 60 bricks. We
can calculate this by working out the surface area of one brick
(including mortar) and seeing how many times it fits into an area 1m
long and 1m high.

7. How Many Bricks?
Before a bricklayer starts a project they will calculate the number of bricks
required to complete the project. They can then order the bricks knowing
they will have enough materials (but not too much).
To calculate the number of bricks required for a half brick wall you
multiply the surface area by 60 as there are 60 bricks per square metre.

8. Activity 3
3m
10m
The wall shown is 10m long and 3m high. How many bricks are required
to build the wall?
Number of Bricks = Surface Area x 60
Number of Bricks = (10 x 3) x 60
Number of Bricks = 1800

9. Activity 4
2.6m
8m
The wall shown is 8m long and 2.6m high. How many bricks are required
to build the wall?
Number of Bricks = Surface Area x 60
Number of Bricks = (8 x 2.6) x 60
Number of Bricks = 1248

10. Activity 5
1.5m
6m
The wall shown is 6m long and 1.5m high. How many bricks are required
to build the wall?
Number of Bricks = Surface Area x 60
Number of Bricks = (6 x 1.5) x 60
Number of Bricks = 540

11. Developed by The Stonemasonry Department
City of Glasgow College
2012