Details: carpenter 1st class providing and fixing 12.5 mm thick tapered edge gypsum board conforming to is 2095- part i at all height false ceiling including providing and fixing of frame work made of special sections power pressed from m.s. sheet and galvanised in accordance with zinc coating of grade 350 as per is : 277 and consisting of angle cleats of size 25mm wide x 1.6mm thick with flanges of 22mm and 37mm at 1200mm centre to centre one fixed to the ceiling with dash fastener 12.5mm diax40mm long with 6mm dia bolts to the angle hangers of 25x25x0.55mm of required length, and other end of angle hanger being fixed with nut and bolts to g.i. channels 45x15x0.9mm running at the rate of 1200mm centre to centre to which the ceiling section 0.5mm thick bottom wedge of 80mm with tapered flanges of 26mm each having clips of 10.5mm at 450mm centre to centre shall be fixed in a direction perpendicular to g.i. channel with connecting clips made out of 2.64mm diax230mm long g.i. wire at every ju
Sector: PWD