In this article, we will discuss what is the cost of construction of one room having size 10 ft x 10 ft and its materials estimation.
Whenever anyone decides to construct the house or room he will definitely want to know that construction before allotting or starting the construction. This is essential to know the approximate cost of construction before starting construction. This is also known as an estimation. The estimation of work is done due to the owing reasons,
- To know the cost of Construction.
- To check the Finacial budget
- To take a loan from a bank.
- To compare contractors’ costs.
Estimation is the process of calculating material quantity and their cost to know the cost of construction. By estimating or calculating the cost of construction in advance you can definitely be going to save lots of money that contractors steal from you because you don’t know the exact costing of work.
This article will show you how to calculate quantities of materials like brick, cement, sand, Steel, and tiles with their cost.
Cost of Construction of One Room:
Suppose there is one room having size 10 ft x 10 ft as shown in fig.
Foe this one room we want to calculate the cost of construction and material quantities.
List of quantities to be calculated,
- Brick Work – Nos. of Brick, Cement Quantity, Sand Quantity in Mortar.
- Concrete Work – Concrete quantity in column,beam, and slab.
- Reinforcement quantity and cost.
- Tile Flooring quantity and cost.
- Labor Work and Cost.
Let’s calculated each quantity one by once,
but before we start estimation first you need to know some important conversation as follows.
1 m = 3.28 ft or 3.28 ft = 1 m
1 ft = 12 inch or 12 inch = 1 ft
To convert ft to meter, divide ft value by 3.28
For example, value is 10 ft then the (10/3.28) = 3.05 m.
Similarly, to convert inch to meter multiple inch value with 0.0254
for example, Value is 9 inch then (9 x 0.0254) = 0.23 m (230 mm).
1. Brick Work:
Brickwork is generally done at outer edge of room and above slab as parapet wall. Brick wall mainly has two thickness full brick and half brick.
Full brick = 9 inch (Used as main wall)
Half Brick = 4.5 inch (Used as partition wall or Inner wall)
Here, Length of wall = 10 ft (3.05 m), ( 10 ft / 3.28) = 3.05 m
Similarly, Width of wall = 9 inch (0.23 m), (9/0.0254) = 0.23 m
There are 4 walls having same length 10 ft.
Quantity of Brick work = 7.65 m3
a) Brick Work in Parapet:
There are two wall having different length, so we name them as short wall and long wall.
Short wall length = 11′ 6″ (11(6/12) / 3.28) = 3.50 m.
Long wall length = 13′ (13′ / 3.28) = 3.96 m.
Height of parapet is same for both = 3′ (3 ft / 3.28) = 0.90 m.
Total Brick Work = Brick work in superstructure + Brick work in parapet wall
Total Brickwork = 7.65 m3 + 0.71 m3
Total Brickwork = 8.99 m3
c) Deduction of Doors and Window Quantity:
When calculating the brick work in superstructure, we have also calculated the quantity of door and window volume that we have to deduct from brick quantity.
c) Nos. of Bricks, Cement and Sand Quantity and Costing:
Total Cost of Brickwork = Rs. 28192
2. Concrete Quantity in Column, Beam and Slab:
Column Size = 9″ x 9″ (0.23 m x 0.23 m)
Beam Size = 9″ x 12″ (0.23 m x 0.30 m)
Slab, Length = 11’6″ ( 11(6/12) / 3.28) = 3.50 m
Width = 13′ (13/3.28) = 3.86 m
Total Concrete Volume = 2.87 m3
Ready mix concrete (RMC) cost for M-20 Grade of Concrete = 3500 Rs. / m3
Cost of Concrete = 2.87 x 35000
Cost of Concrete = Rs. 10,045
3. Reinforcement (Steel) Quantity and Cost:
Generally, Steel quantity in column, beam and slab reinforcement is considered to be around 1% to 2% of volume of concrete.
Volume of Reinforcement (Steel) = 1% of Volume of Concrete
Volume of Reinforcement (Steel) = 0.01 x 2.87 = 0.029 m3
We know the density of steel = 7850 kg / m3
From density and volume of steel , we can calculate weight of steel in kg.
Weight of steel = 0.029 m3 x 7850 kg/m3
Weight of steel = 225.54 kg
Normal rate of construction steel is about 45 to 60 Rs. per Kg in market.
So, if we take 50 Rs. / kg rate, then
Cost of Steel = Weight of Steel x Rate of Steel
= 225.54 x 50
Cost of Steel = Rs. 11,277
Total Cost of Materials:
4. Flooring Tiles Quantity and Cost:
Inside room area is 10 ft x 10 ft where tile flooring is required.
If Size of Tile = 18″ x 18″ (0.45 m x 0.45 m)
First, Calculate area of room where tile flooring is to installed.
Area of Room = 10 ft x 10 ft = 100 sq ft
Suppose, you have chosen tile which has rate of Rs. 25 / sq ft.
Cost of Tile Flooring = 100 x 25 = Rs. 2500
First, Calculate area of room where tile flooring is to installed.
Area of Room = 10 ft x 10 ft = 100 sq ft
Suppose, you have chosen tile which has rate of Rs. 25 / sq ft.
Cost of Tile Flooring = 100 x 25 = Rs. 2500
5. Labor Cost Calculation:
Labor work rate in market starting from 170 rs./sq ft to 500 rs./sq ft depending upon nature of work.
Total Construction area here = 11’6″ x 11’6″ ( 11.5 ft x 11.5 ft) = 132.25 sq. ft.
Cost of Labor = 132.25 x 200
Cost of Labor = Rs. 26,450
6. Total Cost of Construction of One Room:
Cost of Materials = Rs. 52,015
Cost of Labor = Rs. 26,450
(Note: In this estimate plastering, skirting, color etc finishing quantities are not included. there for cost of one room may increase 10,000 to 15,000 rs.)
Total Cost of Construction of One Room,
= 52,015 Rs. + 26,450 Rs.
= 78,465 Rs.
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