half brick walling calculations

11
Half Brick Walling Basic Calculations Stonemasonry Department 2012

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

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Page 1: Half brick walling calculations

Half Brick WallingBasic Calculations

Stonemasonry Department 2012

Page 2: Half brick walling calculations

How Many Courses?

Using the brickwork dimension

table provided by your course

tutor, you can identify how

many courses of brick

are required to build a

brick wall of a

specific height. 

450m

m

375m

m

300m

m

225m

m

150m

m

75m

m

525m

m 600m

m

12345678

Page 3: Half brick walling calculations

Activity 1

Without using the brickwork dimension table complete the table below  

No.of Courses Height (mm)

75

3

300

6

7

675

12

Page 4: Half brick walling calculations

How Many Bricks Long?

Similarly you can quickly identify how many bricks are required to build

a wall of a specific length. 

890mm

665mm

440mm

215mm

1115mm

1340mm

1 2 3 4 5 6

Page 5: Half brick walling calculations

Activity 2

Without using the brickwork dimension table complete the table below  

No.of Bricks Length(mm)

1

3

900

6

7

2025

12

Page 6: Half brick walling calculations

A Square Metre of Brickwork

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. 

1m

1m

Page 7: Half brick walling calculations

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. 

Page 8: Half brick walling calculations

Activity 3

Number of Bricks = Surface Area x 60

Number of Bricks = (10 x 3) x 60

Number of Bricks = 1800 

The wall shown is 10m long and 3m high. How many bricks are required

to build the wall? 

3m

10m

Page 9: Half brick walling calculations

Activity 4

Number of Bricks = Surface Area x 60

Number of Bricks = (8 x 2.6) x 60

Number of Bricks = 1248 

The wall shown is 8m long and 2.6m high. How many bricks are required

to build the wall? 

2.6m

8m

Page 10: Half brick walling calculations

Activity 5

Number of Bricks = Surface Area x 60

Number of Bricks = (6 x 1.5) x 60

Number of Bricks = 540 

The wall shown is 6m long and 1.5m high. How many bricks are required

to build the wall? 

1.5m

6m

Page 11: Half brick walling calculations

Developed by The Stonemasonry DepartmentCity of Glasgow College

2012