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 &
|
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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