2. • Data collected: Drawings and site information gathered
• Architectural model: Constructed using Autodesk Revit
architecture
• Structural model: Model using Autodesk Revit architecture
• Material quantities: Calculated and recorded
• Renders of the model: Captured for visualization purposes
3. Architectural Model Design
• Unit, level, and grid setup
• Material assignment
• Element installation
• Normal weight structure modeling
• Constructing walls
• Laying floors and roofs
• Materials used for walls, floors, and roofs
4. Architectural Model
Lightweight Structure Model-I:
• Material for walls
• Material for floor finishing and roof finishing
Lightweight Structure Model-II:
• Material for walls
• Material for floor finishing and roof finishing
5. Structural Model
• Modeling of structural members
• Concrete used as material
• Laying of all the members
• Providing reinforcement to elements
6.
7. Quantity Takeoff and Cost Estimation
Normal Weight material
Wall Material Volume ( cft ) Vol of Mat. No. of Mat.
Cost per
unit
Amount Rs/-
4" Solid Blocks 11743.88 0.074074074 158542.3802 25 3963559.504
6" Solid Blocks 11946.4 0.444444444 26879.40003 40 1075176.001
6" Hollow Blocks 27715.6 0.444444444 62360.10006 30 1870803.002
8" Solid Blocks 36194.91 0.592592593 61078.91058 70 4275523.741
Total 87600.79 308860.7908 11185062.25
8. Quantity Takeoff and Cost Estimation
Floors
Materials Measurement Amount Rs/-
Total Floor Area (sq ft) 109465
Total floor Volume (cft) 18244.16
2" PCC slab (1:2:4) 18244.16
Cement (Bags) 2606.31 2606310
Sand(cft) 5212.62 547325.1
Crush(cft) 10425.23 1355279.9
Total 4508915
Roof
Materials Measurement Amount Rs/-
No of Marble 11260 563000
50MM Quarto L 1023.636364 2083100
2xcoats Velosit CW
111(1.5kg/m2)
3136.490251 1568245.125
Total 4214345.125
9. Quantity Takeoff and Cost Estimation
Concrete Volume
Concrete Beam Concrete Column
Volume
(cft)
Cost per cft
(3000psi)
Total Cost
(RS)
Volume
(cft)
Cost per
cft
(4000psi)
Total
Cost
(RS)
Original 34350.44 394 13534073.36 Original 22070.63 470 10373196
.1
Optimized 34310.96 394 13518518.24 Optimized 18105.78 470 8509716.
6
CLC 27210.56 394 10720960.64 CLC 17418.5 470 8186695
EPS 19148.55 394 7544528.7 EPS 16534.38 470 7771158.
6
10. Quantity Takeoff and Cost Estimation
Weight of steel
Beam (Ton) Column (Ton) Total (Ton) Cost/ton Total
96.3 81.01 177.31 154000 27305740
96.3 75.33 171.63 154000 26431020
84.36 72.91 157.27 154000 24219580
78.66 68.86 147.52 154000 22718080
11. Quantity Takeoff and Cost Estimation
Lightweight Weight material
Wall Material
Volume
(c. ft)
Vol of Mat. No. of Mat.
Cost per
unit
Amount Rs/-
CLC 4" x 8" x
24 "
11743.88 0.444444444 26423.73 68 1796813.64
CLC 6" x 8" x
24 "
39662.05 0.666666667 59493.075 81 4818939.075
CLC 8" x 8" x
24 "
36194.91 0.888888889 40719.27375 95 3868331.006
Total 126636.078 10484083.7
Wall Material Area (sq. ft) Vol of Mat. No. of Mat. Cost per ft Amount Rs/-
EPS Panels 107152.1007 8 - 137 14679837.79
12. Quantity Takeoff and Cost Estimation
Roof
Materials Measurement Amount Rs/-
No. of 300x150x38mm brick
tiles
23387 1870960
100mm mud 25mm mud plaster 486 694008
PVC membrane 0.25 (sq.ft) 11260 450400
one coat of H bitumen 1459 2083452
Total 5098820
Floors
Materials Measurement Amount Rs/-
50MM Ozonil Quarto (L) 22 kg
with 1kg
PU Beads
1684.7 3428364.5
13. Comparison of Wall Cost
Comparison of Floor
Cost
Quantity Amount Rs/-
Old Floor 4508915
New Floor 3428364.5
Difference 1080550.5
Percentage 23.9
Comparison of Roof
Cost
Quantity Amount Rs/-
Old Roof 5098820
New Roof 4214345.125
Difference 884474.875
Percentage 17.35
