Let us consider modular brick wall masonry as shown in the drawing for calculation purposes.
Given data:
Length of the brick wall = 4m.
Height of the brick wall = 3m.
The thickness of the brick wall = 200mm. = 0.20m.
The total volume of the brick wall masonry
= length × height × thickness
= 4m. × 3m. × 0.20m..
= 2.40 cum.
The total area of brick wall
= length × height
=4m. × 3m.
= 12 sqm.
A. Material calculation:
Read the article " Brick, cement, & sand calculations for modular brick masonry." before proceeding further.
No. of bricks required/ cum. of wall = 500 nos.
No. of Cement bags required/ cum. of wall = 1.261 bags
The volume of sand required/ cum. of wall = 0.2628 cum.
Note :
The requirement of bricks, cement & sand per cum. is taken from the above-mentioned article.
1. No. of bricks required
= [vol. of brick wall × bricks/ cum.]
= [2.4 cum. × 500 nos.]
= 1200 nos.
2. No. of cement bags required
= [vol. of brick wall × cement / cum.]
= [2.4 cum. × 1.261bags]
= 3.0264 bags
3. The volume of sand required
= [vol. of brick wall × sand/ cum.]
= [2.4 cum. × 0.2628 cum.]
= 0.6307 cum.
B. Labor calculation:
The labor rate per cum. of the modular brick masonry ranges from INR 130/- to 210/- depending upon the region.
Let us consider an average rate of INR 170/- per sqm.
The total cost of labor for modular brick masonry
= total area of brick masonry in sqm. × labor rate/ sqm.
= 12 sqm. × 170/-
= INR 2,040/-
Now, let us calculate the total cost of modular brick masonry in table format.
|
Sl. no. |
Item. |
Qty. |
Rate. in INR. |
Unit. |
Cost in INR. |
|
1. |
Modular brick |
1200 |
7/- |
Nos. |
8,400.00 |
|
2. |
Cement |
3.0264 |
380/- |
bag |
1,150.03 |
|
3. |
Sand |
0.6307 |
2100/- |
Cum. |
1,324.47 |
|
4. |
Curing |
Lump-sum |
200.00 |
||
|
5. |
Miscellaneous |
Lump-sum |
175.00 |
||
|
6. |
The material cost = |
11,249.50 |
|||
|
7. |
Add 5% wastage = |
562.48 |
|||
|
8. |
Total material cost = |
11,811.98 |
|||
|
9. |
Labour cost = |
2040.00 |
|||
|
10. |
The total cost of modular brick masonry = |
13,851.98 |
|||
Note: To get accurate results, insert your regional market rate of materials & labor, in the above table.
a. The cost of modular brick wall masonry/sqm.
= [total brick masonry cost ÷ total brick wall area]
= 13,851.98 ÷ 12
= INR 1154.33 /sqm.
b. The cost of modular brick wall masonry/cum.
= [total brick masonry cost ÷ total vol. of the brick wall]
= 13,851.98 ÷ 2.4
= INR 5771.66 /cum.
To go through rate analysis & cost-related articles, click here.
Thank you for going through this article❤. Have a good day😄.
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