Brick is one of the most common and traditional building material. Bricks are available in the market by different size and classification and we may choose it based on the design requirement.
Now we going to discuss how to calculate the number of bricks for brick masonry.
Before that, you may interest to read concrete material calculation.
Let us calculate the number of bricks for 1 Cum.
Size of the Bricks – 225mm x 100mm x 75mm mortar thickness – 10mm Ratio – 1:5
For calculation, purpose converts the Size of bricks into Meter.
So now the measurement in meter 0.225m x 0.1m x 0.075m and teh mortar thickness 0.01m.
Bricks Calculation formula
Volume of 1 brick without mortar = 0.225 x 0.1 x .075 = 0.0016 Cum
The volume of 1 brick without mortar = 0.0016 Cum
Add 10mm thick on each side of brick as mortar thickness to find out the volume of brick with mortar.
Volume of 1 brick with mortar = 0.235 x 0.11 x 0.085 = 0.00219 Cum
Volume of 1 brick with mortar = 0.00219 Cum
Number of bricks with mortar for 1 Cum = 1/0.00219 = 456 Nos
So the required number of bricks for 1 cum = 456 Nos
Volume of bricks in 1 Cum = 456 x 0.0016 = 0.729 Cum
Now you have a question how to calculate the cement mortar consumption for brickwork?
How to calculate cement consumption in brickwork
Above brickwork calculation, we got that volume of bricks in 1 Cum = 0.729 Cum
So now the required volume of cement mortar for 1 Cum brickwork = 1- 0.729
Volume of cement mortar = 0.271 Cum.
Volume of the cement mortar = 0.271 Cum and ratio of Mortar is 1:5
We find out the volume of mortar 0.271 cum in wet condition. (After the consolidation of Cement+sand+water). So in dry conditions, we have to add 30 to 35% sand bulkage and add 20% for wastage.
So the dry volume = 0.2715+(0.271 x 35%) + (0.271 x 20%) = 0.42Cum
Mix ratio 1:5 – 1 part of cement and 3 part of sand (The sand quantity should take 3 times of Cement quantity)
So total part of mortar = 1+5 = 6
Cement = (0.42 x 1)/6 = 0.07 cum
To convert into cement bags – (0.07 x 1440)/50 = 2.016 Bags
Now, Sand = (0.42 x 5)/6 = 0.35 cum
So the required material for 1 Cum brick masonry
Cement – 2.016 Bags
Sand – 0.35 Cum
Number of Bricks – 456 Nos
In earlier ,we discussed how to calculate the cement and sand quantity of mortar for plastering.
I know now you thinking how to calculate the number of bricks per Square foot or Square meter?
How to calculate the number of bricks per Square foot or Square meter?
Size of the Bricks
Area of 1 brick with mortar = 0.235 x 0.085 = 0.019 Sqm
So number bricks required with mortar = 1/0.019 = 52 Nos
So the required number of bricks per sqm for Half brick wall construction 52 Nos.
You may calculate the number of bricks and cement mortar in cft, then follow the above calculation by Feet measurement.
Hope you learn valuable information and share with your friends.
You may use the below calculator to find out the number of bricks and Cement Mortar.