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10.29 Saftey Canopy: Supplying temporary safety canopy around construction work place where public safety is likely to be endangered due to construction activities; which shall be made of truss system of steel sections (main frame) at 1800 mm c/c with purlins @ 750 mm c/c, making flooring system by corrugated galvanized iron sheets of thickness 0.45 mm, laying wire mesh net on iron sheets, providing continuous gutter along the edges of the building with downpipe @ 6000 mm c/c, including fitting and fixing in position providing necessary anchors, cables, wires, ties etc. by standard anchoring and welding, nut-bolts etc, all complete and accepted by the Engineer-in-charge

Considering 1 sft

SL Item Name Quantity Unit Item Rate (Taka) Item Unit Unit Price (Taka) Sub Total (Taka)
1 M.S. angle, T and Z-section, Channel etc. 40x40x6mm M.S Angle:((Top 1x18x13'-8"=246.06rft+Bottom 1x18x12'-2"=219.06rft+Wall side 1x18x1'-6"=27rft+Vertical tie 1x18x1'-2"=21.06rft+Vertical tie 1x18x0'-10"=14.94rft+Vertical tie 1x18x0'-6"=9rft+Vertical tie(end)1x18x2'-4"=41.94rft+Inclined tie 1x18x4x4'-3"=306rft+Purline(horiz.portion)1x18x4x4'-3"=400rft+Purline(vertical portion)1x2x100'-0"=200rft)=1485.06rft+Add wastage5%=74.25rft)=1559.31rft)=475.25rm @2.944kg per rm=1399.14kg 1399.14 kg 70000 per M. ton 70 97939.8
2 Grade 400/420(400Mpa / 400N/mm2 ≈ 60900psi/ 60 Grade), BDS-6935-2006, B400: and ratio fy to fu => 1.25 12 mm dia M.S bar. Inclined tie 1 x 17 x 16'-6" = 280.50 rft Hook (U) 1 x 17 x 2 x 1'-0" = 34.00 rft 314.50 rft Add wastage 5% = 15.73 rft = 330.23 rft )))= 100.65 rm @0.888 kg per rm = 89.38 kg 89.38 kg 72000 per M. ton 72 6435.36
3 Fabrication charge for column, beam, rafter using MS plates including the cost of electricity, LP gas, machinares etc. Workshop charge: (item a(i) + a(ii) = 1399.14 + 89.38 = 1488.52 kg) Fabrication, welding, making charge etc. = 1488.52 kg 1488.52 kg 20000 per M.Ton 20 29770.4
4 0.45 mm thick C.I. sheet: Cost of C.I Sheet. "0.45 mm thick C.I sheet roofing. " "Over truss (horizontal portion) 1 x 100'-0"" x 12'-0"" =" 1200.00 sft "over truss(vertical portion) 1 x 100'-0"" x 1'-6"" =" 150.00 sft "0.45 mm thick CI sheet downpipe 5 x20 ft x1.5 ft =" 150.00 sft 0.45 mm thick CI sheet gutter = 300.00 sft = 1800.00 sft = 167.29 sqm 167.29 sqm 700 per sqm 700 117103
5 0.45 mm thick C.I. sheet: Screws, limpet, washer etc @ 3% on cost of C.I.Sheet 167.29 sqm 700 per sqm 21 3513.09
6 Ordinary labour Erection Labour cost 111.48 sqm 550 per day 200 22296
Sub-Total 277057.65
Contractor's Profit 10% 0.1 27705.77
Contractor's Overhead Expenses 3.5% 0.035 9697.02
Total 314460.44
Add VAT with adjustment factor. 1.08108 7.5% 0.075 25496.77
Grand Total 339957.21
Rate per sft 339957
Rate per sqm 3659297.15
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