In this article, we are going to study the Brickwork Calculation Formula i.e. how to calculate the quantity of brickwork in the foundation of building using AutoCAD. Brickwork Foundation is the foundation provided for the wall of the building. It is constructed below the plinth level i.e. Below the Ground Level. This foundation is made up of brick masonry. (see figure 1 )

Figure 1

Calculation of Quantity of Brickwork in the foundation– Brickwork Calculation Formula

For calculating the quantity of brickwork in the foundation of the building, by Brickwork Calculation Formula, we have to first study and analyze the given drawing of foundation from both views i.e.

  1. Top view / Layout Plan
Brickwork Calculation Formula
Figure 2

In this Plan, (see Figure 2) you will see that FW1 represents the area where brickwork is done.

FW1- Foundation Wall 1

2. Cross-section view

quantity calculation of brickwork
Figure 3

In this view, (see figure3 ) you will see the foundation of a 9-inch thick brick wall. The foundation is constructed in steps above PCC. There are 4 steps provided of various width and thickness.

To find out the quantity of brickwork, by Brickwork Calculation Formula we have to first find out three things

  1. Length of the brick wall
  2. Width of the brick wall
  3. Depth/ Thickness of the brick wall

First, we have to find the length of the wall, the length of the wall can be calculated by analysis the layout plan/ top view.

In the top view of drawing, we have to determine the length of the wall using AutoCAD.

See the figure below.

Brickwork Calculation Formula
Figure 4

Now, as you know the brickwork is done from column to column. So by using dimension command in autocad we find the distance between column to column and then we add all the distance.

In figure 4 you have seen than the distance between the column of F1 footing and column of F3 footing is 10 feet 2 inches. And the distance between the column of F3 footing and F2 footing is 18 Feet 3 Inch. As shown in fig. 3

Similarly, you will find all the Distance between Column to Column and add all the distance which is made our required length.

The complete length of the wall is 215.33 Feet

Now, to find out the width and thickness of wall we have to study the cross-section view, the width and thickness of each step are given in the drawing.

So all the three things i.e. Length, width, thickness are available now to find out the quantity of brickwork

Step1- Calculate the Quantity of brickwork in step 1 which is just above the PCC

Length = 215.33 ft

Width=1ft 10.5inch= 1.875ft

Thickness= 6 inch = 0.5ft

 Quantity of brickwork for 1 step = length x Width x Depth

                                                           = 215.33 x 1.875 x 0.5

= 201.87 Cubic Feet 

=or it is Equal to 5.72 Cum

Step 2- Calculate the Quantity of brickwork in Step 2 which is just above Step 1

Length = 215.33 ft

Width=1ft 6 inch= 1.5ft

Thickness= 6 inch = 0.5ft

 Quantity of brickwork for 1 step = length x Width x Depth

                                                           = 215.33 x 1.5 x 0.5

= 161.49 Cubic Feet 

=or it is Equal to 4.577 Cum

Step 3- Calculate the Quantity of brickwork in Step 3 which is just above Step 2.

Length = 215.33 ft

Width=1ft 1.5 inch= 1.125ft

Thickness= 6 inch = 0.5ft

 Quantity of brickwork for 1 step = length x Width x Depth

                                                           = 215.33 x 1.125 x 0.5

= 121.12 Cubic Feet 

=or it is Equal to 3.433 Cum

Step 4- Calculate the Quantity of brickwork in Step 4 which is just above Step 3.

Length = 215.33 ft

Width   = 9 inch

Now in Step 4, You have to find the thickness/ depth because it is not given directly.

Thickness =(total depth above step 3 –depth of beam – dpc thickness)

= 4ft – 1ft 3 inch -2 inch

= 2.5834 ft

 Quantity of brickwork for 1 step = length x Width x Depth

                                                           = 215.33 x 0.75x 2.5834

= 417.21 Cubic Feet 

=or it is Equal to 11.825 Cum

The total quantity of brickwork of all the steps = (Step1 +Step2+Step3+ step4)

=(5.72+ 4.577 + 3.433 + 11.825)

=25.555 cum

Now, we have to calculate the number of bricks in this quantity

According to the Bureau of Indian Standards, 1 Cum of Brickwork Contain 500 Bricks

Therefore, 25.555 cum Quantity of brickwork contains

 = 25.555 x 500

= 12777.5 numbers of bricks

Hence, Required number of Bricks are 12777.5 NOS

Thankyou….If you Want to learn building Estimate from basics then join Red Bricks Academy of Civil Engineering the Best Training Institute for Civil Engineers in Chandigarh India

1 Comment

  • Rahul sharma
    Posted 16th September 2019 9:38 am 0Likes

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