bids are invited for a. gi frame - providing and fixing partition upto ceiling height consisting of g.i. frame work made of special section power pressed / roll form g.i. sheet with zinc coating of 120 gms/sqm.(both side inclusive), consisting of floor and ceiling channel 50 mm wide having equal flanges of 32mm and 0.50mm thick, fixed to the floor and ceiling at the spacing of 610mm centre to centre with dash fastener of 12.5mm dia meter 50mm length or suitable anchor fastener or metal screws with nylon plugs and the studs 48mm wide having one flange of 34mm and other flange 36mm and 0.50mm thick fixed vertically within flanges of floor and ceiling channel and placed at a spacing of 610mm centre to centre by 6mm dia bolts and nuts, including fixing of studs alongboth ends of partition fixed flush to wall with suitable anchor fastener or metal screws with nylon plugs at spacing of 450mm centre to centre, and fixing ofboards to both side of frame work by 25 mm long dry wall screws on studs, floor and ceiling channels at the spacing of 300mm centre to centre. , b. gyp board - providing & fixing of 75 mm overall thickness partition with 12.5 mm thick double skinfire rated gypboard conforming to is:2095:part i. the boards are to be fixed to the frame work with joints staggered to avoid through cracks, m.s. fixing channel of 99 mm width (0.9 mm thick having two flanges of 9.5 mm each) to be provided at the horizontal joints of two boards, fixed to the studs using metal to metal flat head screws, including jointing and finishing to a flush finish with recommended jointing compound, jointing tape, angle beads at corners (25mm x 25mm x 0.5mm), joint finisher and two coats of primer suitable for board as per manufacture’s specification and direction of engineer in charge all complete. , c. commercial ply - providing & fixing of 75 mm overall thickness partition with 12 mm thick commercial ply. the ply to be fixed to the frame using the necessary screws & pasting/fixing micala