Public Works Department Tender

Detailed Estimate

OD192197/2024-2025:Providing and fixing 8mm densified tegular edged eco friendly light weight calcium silicate false ceiling tiles of approved texture spintone/cosmos/Hexa or equivalent of size 595x595 mm in true horizontal level, suspended on inter locking metal grid of hot dipped galvanized steel sections (galvanizing @ 120grams per sqm including both side)consisting of main 'T' runner suitably spaced at joints to get required length and of size 24x38 mm made from 0.33 mm thick (minimum) sheet, spaced 1200 mm centre to centre, and cross 'T' of size 24x28 mm made out of 0.33 mm (minimum)sheet, 1200 mm long spaced between main 'T' of size 24x28 mm made out of 0.33 mm (minimum) sheet, 1200 mm long spaced between main ' T' at 600 mm centre to centre to form a grid of 1200x 600 mm and secondary cross 'T' of length 600 mm and size 24x28 mm made of 0.33 mm thick (minimum) sheet to be inter locked at middle of the 1200x600 mm panel to form grid of size 600x600 mm, resting on periphery walls/ partitions on a Perimeter wall angle pre-coated steel of size (24x24x3000) mm made of 0.40mm thick (minimum) sheet with the help of rawl plugs at 450 mm centre to centre with 25 mm long dry wall screws @ 230 mm interval and laying 8 mm thick densified edges calcium silicate ceiling tiles of approved texture (spintone/cosmos/hexa) in the grid, including cutting /making opening for services like diffusers, grills, light fittings, fixtures, smoke detectors etc., wherever require. Main 'T' runners to be suspended form ceiling using G.I slotted cleats of size 25x35x1.6 mm fixed to ceiling with 12.5 mm dia and 50 mm long dash fasteners, 4 mm G.I adjustable rods with galvanized steel level clips of size of 85x30x0.8 mm, spaced at 1200 mm centre to centre along main 'T' bottom exposed with 24 mm of all T- sections shall be pre-painted with polyster baked paint, for all heights, as per specifications, drawings and as directed by engineer in - charge. Note :- Only Calcium Silicate false ceiling area will be measured from wall to wall. No deduction shall be made for exposed frames/opening (cut outs) having area less than 0.30sqm. The calcium silicate ceiling tiles shall have NRC. value of 0.50 (minimum), light reflection > 85% non- combustible as per B.S 476 part IV, 100% humidity resistance and also having thermal conductivity < 0.043 w/m 0 KC.

14.1.1:Repairs to plaster of thickness 12 mm to 20 mm in patches of area 2.5 sq meters and under, including cutting the patch in proper shape, raking out joints and preparing and plastering the surface of the walls complete, including disposal of rubbish to the dumping ground within 50 meters lead:With cement mortar 1:4 ( 1 cement : fine sand)