Now, let us calculate the gypsum plastering cost of one room of a building as shown below.
The calculation of wall area for gypsum plastering is picked from my article 👇
👀. What will be the cost of plastering in a building?
The area of the wall to be plastered = 570. 5 sq ft.
In the market, you will get different brands of gypsum plaster having their own specified coverage area.
As gypsum plaster is a ready-made product, the cost of plastering will vary according to the type & brand you have chosen.
Let us understand this with an example.
For calculation purpose, I have taken the Saint-Gobain brand as shown below.
Given data by company:
Weight of one bag = 25 kg.
Plastering thickness = 13mm.
Coverage area = 27 sq ft./bag.
The no. of bags required to plaster the room
= [plastering area ÷ coverage area/bag]
= [ 570.5 sq ft. ÷ 27 sq ft. / bag ]
= 21.13 bags.
Material cost:
The cost of one bag as of date is INR 295/-
Labor cost:
The labor cost of gypsum plaster ranges from INR 8/- to 14/- per sq ft.
Let us consider an average rate of INR 11/- per sq ft.
The total cost of labor
= [plastering area × labor rate/sq ft.]
= [ 570.5 sq ft. × 11/- ]
= INR 6275.50/-
Now, let us calculate the gypsum plastering cost in a table format.
Sl. no. |
Item. |
Qty. |
Rate. in INR. |
Unit. |
Cost in INR. |
1. |
Gypsum bag |
21.13 |
295/- |
Bags |
6233.35 |
3. |
Transport |
Lump-sum |
350.00 |
||
4. |
Miscellaneous |
Lump-sum |
200.00 |
||
5. |
The material cost = |
6783.35 |
|||
6. |
Add 5% wastage = |
339.16 |
|||
7. |
Total material cost = |
7122.52 |
|||
8. |
Labour cost = |
6275.50 |
|||
9. |
The total cost of gypsum plastering = |
13,398.02 |
Note: 1. To get the accurate cost of plastering, insert the ongoing market rate of labor & material in your country.
👀. The cost of gypsum plastering /sq ft.
= [total plastering cost ÷ total plastered area]
= [ 13,398 ÷ 570.5]
= INR 23.48/- per sq ft.
👀. If the plastering work is handed over to any contractor, then you have to add 10% extra for his profit.
= [plastering cost/sq ft. + 10% of plastering cost/sq ft.]
= [ 23.48/- + ( 10 ÷ 100) × 23.48/-]
= [23.48 + 2.348]
= INR 25.83/- per sq ft.
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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