Construction Cost Estimating

      

How to calculate the number of bricks in a house

In this construction video tutorial, you will learn the step-by-step methods for working out the number of bricks required in a house.

Assume, the size of the room is taken as 6 m x 4 m
The height of the room is taken as 3 meter and thickness as 0.23 meter
There are doors and windows in the room.
The size of the door is taken as 2.1 meter x 0.9 meter
The size of the window is taken as 1.8 meter x 2.4 meter
The dimension of the brick to be used = 19 cm x 9 cm x 9 cm

Initially, you have to determine the length of long and short walls as follow :-

Length of long wall = 6 meter
Length of short wall will be calculated as follow :-
4 – (2 times of thickness) = 4 – (0.23 x 2) = 3.54 meter
As there are two long walls and two short walls, both should be multiplied with 2
So, length of long walls = 6 x 2 = 12 meter
And length of short walls = 3.54 x 2 = 7.08 meter

Now, you have to find out the volume of long wall as follow :-

Length x Breadth x Height
After putting the value, the following result is produced :-
= 12 x 0.23 x 3 = 8.28 m3
So, actual volume of long wall = 8.28 – (volume of window) = 8.28 – (1.8 x 2.4 x 0.23) = 7.29 m3

Now, the volume of short wall will be calculated as follow :-

Length x Breadth x Height
After putting the value, the following result is produced :-
= 7.08 x 0.23 x 3 = 4.89 m3
So, actual volume of short wall = 4.89 m3 – (volume of door) = 4.89 – (2.1 x 0.9 x 0.23) = 4.46 m3

So, total volume = Volume of long wall + volume of short wall = 7.29 + 4.46 = 11.75 m3

Now, select the size of one brick with mortar as follow :-
Size of brick = 19 cm x 9 cm x 9 cm = 20 cm x 10 cm x 10 cm (after adding mortar)

After converting to meter, we get the following :-
0.2 x 0.1 x 0.1 meter = 0.002 meter
Numbers of bricks = Total volume / volume of one brick
= 11.75 / 0.002 = 5872.65 numbers
If you consider 5% wastage, then it will be 5% of 5872.65 + 5872.65
= 293.63 + 5872.65 = 6166.28 = 6167 numbers
Therefore, the total number of bricks for a house = 6167 nos.

To get more detail, go through the following video.

Video Source: ENGINEERING TACTICS

How to calculate the number of bricks in a house