ESTIMATION OF TWO STOREYED RESIDENTIAL BUILDING

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ESTIMATION OF TWO
STOREYED RESIDENTIAL BUILDING

Estimation is the process of finding an estimate, or approximation, which is a value that is usable for some purpose even if input data may be incomplete, uncertain, or unstable. The value is nonetheless usable because it is derived from the best information available.Typically, estimation involves "using the value of a statistic derived from a sample to estimate the value of a corresponding population parameter".The sample provides information that can be projected, through various formal or informal processes, to determine a range most likely to describe the missing information. An estimate that turns out to be incorrect will be an overestimate if the estimate exceeded the actual result,and an underestimate if the estimate fell short of the actual result.

How estimation is done?

Estimation is often done by sampling, which is counting a small number of examples something, and projecting that number onto a larger population.An example of estimation would be determining how many candies of a given size are in a glass jar. Because the distribution of candies inside the jar may vary, the observer can count the number of candies visible through the glass, consider the size of the jar, and presume that a similar distribution can be found in the parts that can not be seen, thereby making an estimate of the total number of candies that could be in the jar if that presumption were true. Estimates can similarly be generated by projecting results from polls or surveys onto the entire population.

Uses of estimation

In mathematics, approximation describes the process of finding estimates in the form of upper or lower bounds for a quantity that cannot readily be evaluated precisely, and approximation theory deals with finding simpler functions that are close to some complicated function and that can provide useful estimates. In statistics, an estimator is the formal name for the rule by which an estimate is calculated from data, and estimation theory deals with finding estimates with good properties. This process is used in signal processing, for approximating an unobserved signal on the basis of an observed signal containing noise. For estimation of yet-to-be observed quantities, forecasting and prediction are applied. A Fermi problem, in physics, is one concerning estimation in problems which typically involve making justified guesses about quantities that seem impossible to compute given limited available information.
Sl.
No
Description
No
Dimension
Remark
L
(m)
B
(m)
D
(m)
Qty.
1.
Earth work Excavation







a) Footing
17
2.20
2.20
2.00
164.56


b) Plinth Beam







i) Wall allround
1
22.68
0.23
0.40
2.086


c/w b/w







ii) M. Bed & Drawing
1
1.80
0.23
0.40
0.165


iii) Kitchen & Drawing
1
2.52
0.23
0.40
0.232


iv) M.Bed & Toilet
1
2.67
0.23
0.40
0.246


v) Toilet & Kitchen
1
2.07
0.23
0.40
0.191


vi) Drawing & Bed
1
2.06
0.23
0.40
0.189


vii) Drawing & Study
1
1.76
0.23
0.40
0.162


viii) Toilet
1
6.10
0.45
0.45
1.235







169.066m3

2.
River Sand Filling







a) Footing
17
2.20
2.20
0.10
8.228


b) Plinth beam







i) Wall allround
1
50.26
0.23
0.05
0.578







8.806m3

3.
P.C.C. 1:4:8







a) Footing
17
2.20
2.20
0.15
12.342m3

4
Random Rubble Masnory







Wall allround

50.26
0.3
0.3
4.52


Toilet

6.17
0.3
0.3
0.55







5.07m3

5
R.C.C. 1:2:4







a) Footing







i) at Rectangular portion
17
2.2
2.2
0.1
8.228


ii) above Rectangular portion upto column junction
17
2.4
46
0.55
22.870


iii) Column (Upto plinth level)
17
0.23
0.23
1.35
1.215


iv) Upto I floor
17
0.23
0.23
3
2.698


v) Upto I to II floor
12
0.23
0.23
3
1.904







36.195m3

6.
Plinth Beam







i) Wall alround
17
50.26
0.23
0.30
58.467


ii) M.bed & Drawing

3.96
0.23
0.30
0.273


iii) Kitchen & Drawing

4.72
0.23
0.30
0.325


iv)  M.bed & Toilet

4.87
0.23
0.30
0.336


v) Toilet & Kitchen

4.27
0.23
0.30
0.294


vi) Drawing & Bed

4.26
0.23
0.30
0.294


vii) Drawing & Study

3.96
0.23
0.30
0.273


viii) Toilet

6.10
0.23
0.30
0.420







60.682m3

7.
Lintel @ I floor







i) Wall alround
17
50.26
0.23
0.15
29.47


ii) M.bed & Drawing

3.96
0.23
0.15
0.136


iii) Kitchen & Drawing

4.72
0.23
0.15
0.163


iv)  M.bed & Toilet

4.87
0.23
0.15
0.168


v) Toilet & Kitchen

4.27
0.23
0.15
0.147


vi) Drawing & Bed

4.26
0.23
0.15
0.147


vii) Drawing & Study

3.96
0.23
0.15
0.136


viii) Toilet

6.10
0.23
0.15
0.210







30.577m3

8.
Lintel @ IInd floor







i) Wall allround
1
49.06
0.23
0.15
1.673


ii) Drawing & Bed
1
3.96
0.23
0.15
0.137


iii) Bed & Drawing
1
4.72
0.23
0.15
0.163







5.53m3

9.
Sunshade







i) Wall allround I floor
1
46.85
0.45
0.087
1.834


ii) Wall allround II floor
1
43.59
0.45
0.087
1.706

10
Roof Slab @ I floor







with 1:1½:3







i) Kitchen
1x1
4.73
5.18
0.12
2.940


ii) Toilet & Bath
1x1
4.23
1.52
0.12
0.772


iii) Master bed
1x1
5.32
4.42
0.12
2.827


iv) Drawing
1x1
6.10
10.67
0.12
7.810


v) Bed Room
1x1
4.42
4.72
0.12
2.503


vi) Study
1x1
4.19
4.19
0.12
2.107


vii) Toilet
1x1
1.75
3.13
0.12
0.657







19.63m3


Deduction







Opening area
1x1
7.93
4.10
0.12
(-) 3.902


Stair Case
1x1
1.00
6.10
0.12
(-) 0.732


Stair Case
1x1
1.20
1.00
0.12
(-) 0.288







(-) 4.922m3

11.
Second Floor







Room
1x1
4.73
5.18
0.12
2.940


Hall
1x1
6.10
10.67
0.12
7.810


Bed
1x1
4.19
4.19
0.12
2.107


Toilet I
1x1
1.75
3.13
0.12
0.657


Toilet II
1x1
4.23
1.52
0.12
0.772







14.286m3

12.
Beam Ist Floor







Front Side Kitchen
1x2
4.27
0.23
0.45
0884


Rear Side Kitchen
1x2
4.72
0.23
0.45
0.977


Master bed room
1x2
4.87
0.23
0.45
1.008


Master bed room
1x2
3.96
0.23
0.45
0.820


Toilet
1x2
1.52
0.23
0.45
0.315


Drawing
1x2
6.10
0.23
0.45
1.263


Bed Front Side
1x2
3.96
0.23
0.45
0.820


Bed Read Side
1x2
4.26
0.23
0.45
0.882


Study & Bed
1x2
3.96
0.23
0.45
0.820


Game area
1x3
1.98
0.23
0.45
0.615


Curved Beam
1x1
3.11
0.20
0.45
0.322







8.726m3

13.
Stair Case







Beam
1x1
4.32
0.30
0.45
0.583


Beam
1x2
8.43
0.30
0.45
0.656


Beam
1x2
1.70
0.30
0.45
0.459


Steps
1x20
1.80
0.30
0.07
0.756


Waist Slab
1x1
6.56
1.00
0.15
0.984







3.438m3



14.
I Class







Brick work in
C.M. 1:4







Ist Floor







Front Side Kitchen
1x2
4.27
0.23
2.40
4.714


Rear Side
1x2
4.72
0.23
2.40
5.211


Master bed room
1x2
4.87
0.23
2.40
5.376


Master rear side
1x2
3.96
0.23
2.40
4.372


Toilet
1x2
1.52
0.23
2.40
1.678


Drawing
1x2
6.10
0.23
2.40
6.734


Bed front side
1x2
3.96
0.23
2.40
4.372


Bed rear side
1x2
4.26
0.23
2.40
4.703


Study & bed
1x2
3.96
0.23
2.40
4.372


Game area
1x2
1.98
0.23
2.40
3.278


Curved
1x2
3.11
0.23
2.40
1.717







46.527m3


IInd Floor







Toilet
1x2
3.77
0.23
2.40
4.162


Toilet rear side
1x2
1.52
0.23
2.40
1.678


Bed room
1x2
4.87
0.23
2.40
5.376


Bed rear side
1x2
4.72
0.23
2.40
5.211


Bed room
1x2
3.96
0.23
2.40
8.744


Drawing
1x2
6.10
0.23
2.40
6.734


Drawing rear side
1x2
10.67
0.23
2.40
23.560


Toilet
1x2
1.52
0.23
2.40
1.678


Toilet rear side
1x2
2.67
0.23
2.40
2.947







60.09m3


Parapet







B.W in Ist Floor
1
19.17
0.115
1.00
2.20


B.W. in IInd Floor
1
51.8
0.115
1.00
5.96







8.16m3


Deduction







Door (D1)
1
1.2
0.23
2.10
0.579


Door (D2)
8
1.0
0.23
2.10
3.864


Door (D3)
5
0.9
0.23
2.10
2.174


Window (W1)
12
1.5
0.23
1.5
6.210


Arc Window (W2)
2
2.0
0.23
2.00
1.840


Ventilator
3
0.6
0.23
0.60
0.248







14.915m3

15.
Celling Plastering C.M. 1:3







Ist Floor







Kitchen

4.27
4.72
-
20.15


M.Bed

4.87
3.96
-
19.28


Toilet

3.77
1.52
-
5.73


Study & bed

3.96
3.96
-
15.68


Bed

3.96
4.26
-
16.86


Toilet

1.52
2.67
-
4.06




Drawing (Front)
1
6.1
2.4
-
14.64


Drawing (Side)
2
6.07
1.0
-
12.11







108.51m2


IInd Floor







Bed Room
1
4.27
4.72
-
20.15


Bed Room
1
3.96
3.96
-
15.68


Toilet
1
3.77
1.52
-
5.73


Toilet
1
1.52
2.67
-
4.06


Drawing
1
6.1
10.67
-
65.09







110.71m2


Wall Plastering







Outer Wall allround
1
53.48
-
3.0
160.44


Kitchen
2
17.98
-
3.0
107.78


M.Bed
1
17.66
-
3.0
52.98


Toilet
2
10.52
-
3.0
63.48


Drawing
2
33.54
-
3.0
201.24


Bed
1
16.44
-
3.0
49.32


Study & Bed
2
15.84
-
3.0
95.04


Toilet
2
8.38
-
3.0
50.28







780.56m2


Parapet Plastering







B.W in Ist Floor
1
19.17
-
2.115
40.54


B.W. in IInd Floor
1
51.8
-
2.115
109.55







150.09m2


Deduction







Door (D1)
1x2
1.2
-
2.1
5.04


Door (D2)
1x8
1.0
-
2.10
16.80


Door (D3)
1x5
0.9
-
2.10
9.45


Window (W1)
1x12
1.5
-
1.5
27.00


Arc Window (W2)
1x2
2.0
-
2.0
8.00


Ventilator
1x3
0.6
-
0.6
1.08







67.37m2



1.     Earthwork excavation                       -        169.066 m3
2.     Qty. of River Sand                            -        8806 m3
3.     Qty. of P.C.C 1:4:8                           -        12.342 m3
4.     Qty. of Randam Rubble Masnory     -        5.07 m3
5.     Qty. of R.C.C. 1:2:4                          -        174.848 m3
6.     B.W. in C.M. 1:4                              -        99.86 m3
7.     Plastering                                          -        1082.5   m2
8.     White washing                                  -        108.5 m2

Abstract Estimate

S.
No.
Description
Units
Qty.
Rate
Amount
1.
Earthwork excavation
m3
168.066
510.00
86223.66
2.
River Sand
m3
8.806
245.00
2157.47
3.
P.C.C 1:4:8
m3
12.342
3535.00
43628.97
4.
Randam Rubble Masnory
m3
5.07
2657.00
13470.99
5.
R.C.C. 1:2:4
m3
174.848
4090.00
715128.32
6.
B.W. in C.M. 1:4
m3
99.86
11570.00
1055520.80
7.
Plastering
m2
1082.5
360.00
389700.00
8.
White washing
m2
1082.5
55.00
59537.50





2755064.65


Total Cost                      =       Rs.2755064.65
 Add 5% contingencies   =       5/100 x 2755064.65
                                      =       Rs. 137753.2325
Total amount                 =       Rs. 2893817.88

Say Rs. 3000000/-
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