Let us consider solid concrete block masonry as shown in the drawing for calculation purposes.
Given data:
Length of the block masonry = 16ft.
Height of the block masonry = 10ft.
The thickness of the block masonry = 0.5ft.
The total volume of the block masonry
= length × height × thickness
= 16ft. × 10ft. × 0.5ft.
= 80 cu ft.
The total area of block masonry
= length × height
=16ft. × 10ft.
= 160 sq ft.
A. Material calculation:
Read the article "Calculating the quantity of materials in a 100 cubic ft. block wall." before proceeding further.
No. of blocks required/100 cu ft. of wall = 210 nos.
No. of Cement bags required/100 cu ft of wall = 1.038 bags
The volume of sand required/100 cu ft. of wall = 7.634 cu ft.
Note: The quantity of blocks, cement & sand/ 100 cu ft. is taken from the above-mentioned article.
1. No. of concrete blocks required
= [(vol. of block wall ÷ 100 cu ft.) × blocks/100 cu ft.]
= [(80 cu ft. ÷ 100 cu ft.) × 210 nos.]
= 168 nos.
2. No. of cement bags required
= [(vol. of block wall ÷ 100 cu ft.) × bags/100 cu ft.]
= [(80 cu ft. ÷ 100 cu ft.) × 1.038 bags]
= 0.83 bags.
3. The volume of sand required
= [(vol. of block wall ÷ 100 cu ft.) × sand/100 cu ft.]
= [(80 cu ft. ÷ 100 cu ft.) × 7.634 cu ft.]
= 6.11 cu ft.
B. Labor calculation:
The labor rate per sq ft. of the block masonry ranges from INR 10/- to 15/- depending upon the region.
Let us consider an average rate of INR 12/- per sq ft.
The total cost of labor for block masonry
= total area of block masonry in sq ft. × labor rate/ sq ft.
= 160 sq ft. × 12/-
= INR 1920/-
Go through the article👇
👀. What will be the cost of 9" brick wall masonry?/ Rate analysis of 9" thick brick wall work.
Now, let us calculate the total cost of block masonry in table format.
Sl. no. |
Item. |
Qty. |
Rate. in INR. |
Unit. |
Cost in INR. |
1. |
Solid block |
168 |
28/- |
Nos. |
4704.00 |
2. |
Cement |
0.83 |
400/- |
bag |
332.00 |
3. |
Sand |
6.11 |
60/- |
Cu ft |
366.60 |
4. |
Curing |
Lump-sum |
200.00 |
||
5. |
Miscellaneous |
Lump-sum |
150.00 |
||
6. |
The material cost = |
5752.60 |
|||
7. |
Add 5% wastage = |
287.63 |
|||
8. |
Total material cost = |
6040.23 |
|||
9. |
Labour cost = |
1920.00 |
|||
10. |
The total cost of block masonry = |
7960.23 |
Note: To get accurate results, insert your regional market rate of materials & labor, in the above table.
The cost of block masonry/sq ft.
= [total block masonry cost ÷ total block wall area]
= 7960.23 ÷ 160
= INR 49.75/sq ft.
The cost of block masonry/ cu ft.
= [total block masonry cost ÷ total block wall volume]
= 7960.23 ÷ 80
= INR 99.50/cu ft.
Thank you for going through this article❤. Have a good day😄.
If you have any quarries, you can ask me in the comment box👇.
🙏 Sir how can you fix the labour 12-15/sqft pl give the labour nos
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