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10.30 Safety net with G.I Wire: Supply, fabrication, installation and taking out temporary horizontal safety net around construction work place where public safety is likely to be endangered due to construction activities; which shall be made of Chain link net with 24 BWG wire fitted at 15'-0'' height horizontally of the outer periphery of the building with 75mmx40mmx5mm MS Chanel post and purlin,20mm MS Rod and 40mmx40mmx6mm MS Angle as ties etc. by standard anchoring and welding, nut-bolts etc, all complete and accepted by the Engineer-in-charge( Salvage materials shall be the contractors property after completion of work.)

Considering 36'-2'' X20'-5'' =738.59 sft work

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. Cost of M.S materials. : (i)75mmx40mmx5mm M.S Chanel. :((Vertical Top Post 10x12'-6"=185rft + Purline(horiz.portion) 5x20'-5"=102.10rft)=287.10rft + Add wastage 5% =14.36rft)=301.46rft=91.88rm @5.69 kg per rm =522.80kg 522.8 kg 70000 per M. ton 70 36596
2 M.S. angle, T and Z-section, Channel etc. (ii)40mmx40mmx6mm M.S Angle. :(For Tie 2x36'-2"=72.34rft + Add wastage 5% =3.62rft)=75.96rft=23.15rm @3.854 kg per rm =89.22 kg 89.22 kg 70000 per M. ton 70 6245.4
3 Grade 400/420(400Mpa / 400N/mm2 ≈ 60900psi/ 60 Grade), BDS-6935-2006, B400: and ratio fy to fu => 1.25 (iii)20 mm dia M.S bar.: (For Tie 9x36'-2"=325.53rft + Add wastage 5% =16.28rft)=341.81rft=104.18rm @2.466 kg per rm =256.91kg ,Total Fabrication work=868.93kg 256.91 kg 72000 per M. ton 72 18497.52
4 Safety Net (chain link with 24BWG wire net) (iv)Safety Net(chain link with 24BWG wire net):(Horizontal surface 36'-2''X20'-5''=738.59sft + Add wastage 5% =36.9295sft)=775.5195sft 775.5195 sft 25 sft 25 19387.99
5 Fabrication of safety net Workshop charge: For fabrication work=868.93kg 868.93 kg 25 per kg 25 21723.25
6 Skilled labour cost for fitting and fixing wire net to the frame and frame as position= 738.59sft 738.59 sft 600 per day 30 22157.7
7 Tools and Machineries : Tools and Plants LS 500
Sub-Total 125107.86
Contractor's Profit 10% 0.1 12510.79
Contractor's Overhead Expenses 3.5% 0.035 4378.78
Total 141997.43
Add VAT with adjustment factor. 1.08108 7.5% 0.075 11513.29
Grand Total 153510.72
Rate per sft 207.84
Rate per sqm 2237.19
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