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13.1 Supplying, fitting and fixing window grills made of 16 mm dia M.S. rod @ 100 mm c/c fitted with 3 (three) nos. horizontal M.S. flat bar (38 mm x 6 mm) including fabrication, welding, riveting, cost of electricity, workshop charges, carriage, fixing with clamps in wall/RCC member for all floors, finished with anti-corrosive painting (Red-Oxide) etc. complete and accepted by the Engineer-in-charge. (Total weight per sqm should be approx. 19 kg and add or deduct @ Tk. 100.00 for each kg/sqm excess or less respectively)

For 1 No. window grill Considering 3'-6" x 4'-6" = 15.75 sft of work

SL Item Name Quantity Unit Item Rate (Taka) Item Unit Unit Price (Taka) Sub Total (Taka)
1 M.S. plain bar and F.I. bar (non-structural use) (a)Materials: (i)F.I.bars:3x4'-0"=12.00rft(@ 1.28 Ibs per rft)=15.36Ibs 15.36 Ibs 70000 per M. ton 31.75 487.68
2 Grade 300(300Mpa / 300N/mm2 ≈ 43500psi/40 Grade): BDS- 6935-2006 - B300 and Ratio fy to fu =>1.25 (ii)16mm dia M.S.rod(1.043 Ibs per rft):10x4'-6"=45rft=46.94Ibs 46.94 Ibs 65000 per M. ton 29.48 1383.79
3 Making steel grill (b)Workshop charge: Labour cost for manufacturing, welding including supply of necessary electrode, cutting steel to required sizes etx complete. 15.75 sft 51 per sft 51 803.25
4 Mason / Mosaic mistry (c)Labour charges: Labour charges for fitting and fixing in position of grills : Mason 0.25 sft 700 per day 700 175
5 Helper to carpenter/painter/plumber/rod binder/electrician/polish mistry/rig operator Skilled labour 0.25 sft 550 per day 550 137.5
6 Local carriage LS 50
7 Cost of CC (1:1.5:3) in/c mending LS 75
Sub-Total 3112.22
Contractor's Profit 10% 0.1 311.22
Contractor's Overhead Expenses 3.5% 0.035 108.93
Total 3532.37
Add VAT with adjustment factor. 1.08108 7.5% 0.075 286.41
Grand Total 3818.78
Rate per sft 242.48
Rate per sqm 2610.05
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