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13.3.1 Supplying, fitting and fixing window grills of any design made with 20 mm x 5 mm F.I. bar @ 100 mm c/c as inner and outer section; including fabricating, welding, cost of electricity and tools and plants, finished with anti-corrosive painting (Red-Oxide), carriage, cutting grooves, mending good the damages etc. complete for all floors accepted by the Engineer-in-charge. (Total weight per sqm should be approx. 11 kg. and add or deduct. @ Tk. 100.00 for each kg/sqm excess or less respectively)

For 1 No. window grill Considering 5'-4" x 4'-6" = 23.985 sft = 2.228 sqm 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)20x5mm F.I.bars(@ 0.478 Ibs per rft) for outer members(2x5'-4"=10.67rft+2x4'-6"=9.00rft)=19.67rft+Add 5% wastage0.98rft)=20.65rft=9.87lbs 9.87 lbs 70000 per M. ton 31.75 313.37
2 M.S. plain bar and F.I. bar (non-structural use) (ii)20x5mm F.I.bars(@ 0.478 Ibs per rft) for inner members:(Horizontal 4x5'-4"=21.32rft+Horizontal short piece 6x4x1'4"=31.92rft+vertical 6x4'-6"=27.00rft+F.I. Bars for clamps 6x2x0'-6"=6.00rft)=86.24rft+Add 5% wastage 4.31rft)=90.55rft=43.28lbs 43.28 lbs 70000 per M. ton 31.75 1374.14
3 Making steel grill (b) Workshop charge: Labour cost for manufacturing, welding including supply of necessary electrode, cutting steel to required sizes etx complete. 23.985 sft 51 per sft 51 1223.23
4 Mason / Mosaic mistry (c) Labour charges: Labour charges for fitting and fixing in position of grills : mason 0.5 no 700 per day 700 350
5 Helper to carpenter/painter/plumber/rod binder/electrician/polish mistry/rig operator skilled labour 0.5 no 550 per day 550 275
6 Local carriage LS 82.5
7 Cost of CC (1:1.5:3) in/c mending LS 150
Sub-Total 3768.24
Contractor's Profit 10% 0.1 376.82
Contractor's Overhead Expenses 3.5% 0.035 131.89
Total 4276.95
Add VAT with adjustment factor. 1.08108 7.5% 0.075 346.78
Grand Total 4623.73
Rate per sft 192.79
Rate per sqm 2075.19
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