Construction of partition wall false ceiling wall panelling shelves and other allied works at West District Laboratory and Office of the Executive Engineer DWS Division Agartala-II during the year 2026-27

Providing & fixing in position wall panelling at all heights with 6mm thick BWP ply board lapping with 4mm thick Teak Veneer of approved quality in outer face, decorative teak wood bead (50x40) at top & skirting (150x25), comprising of a frame made from especially fabricated galvanised mild steel sheet 0.50 mm thick pressed section (galvanizing @120 grams per sqm including both sides) i.e.vertical studs of size 48 x 34 x 36 mm are placed at 600mm center to center in a floor and ceiling channel section of size 50x32m fixed to the floor and soffit at 600mm centers using 12mm dia,50mm long wedge type expanded zinc alloy dash fastner with 10mm bolt. This same channel is then to be fixed in horiziontal direction at 600mm center to center so as to form a grid of 600mm x 600mm. Glasswool of 50mm thickness is then to be inserted in the slots & finally ply board are to be screw fixed with self tapping pan head nickel coated mild steel screws of size 13x3.2mm all complete as per manufacturer's specification as per direction of Eng-in-Charge all complete.

i) 12.5 mm thick square edge PVC Laminated Gypsum Tile of size 595x595 mm, made of Gypsum plasterboard, manufactured from natural gypsum as per IS 2095 part I and laminated with white 0.16mm thick fire retardant PVC film on the face side and 12micron metalized polyester on the back side with all edges sealed with the face side PVC film which goes around and wraps the edges and is bonded to the edges and the back side metalized polyester film so as to make the tile a completely sealed unit.

Providing and fixing factory made uPVC white colour fixed glazed windows/ ventilators comprising of uPVC multi-chambered frame and mullion (where ever required) extruded profiles duly reinforced with 1.60 ± 0.2 mm thick galvanized mild steel section made from roll forming process of required length (shape & size according to uPVC profile), , uPVC extruded glazing beads of appropriate dimension, EPDM gasket, G.I fasteners 100 x 8 mm size for fixing frame to finished wall, plastic packers, plastic caps and necessary stainless steel screws etc. Profile of frame shall be mitred cut and fusion welded at all corners, mullion (if required) shall be also fusion welded including drilling of holes for fixing hardware's and drainage of water etc. After fixing frame the gap between frame and adjacent finished wall shall be filled with weather proof silicon sealant over backer rod of required size and of approved quality, all complete as per approved drawing & direction of Engineer-in- Charge. (Single / double glass panes and silicon sealant shall be paid separately). Variation in profile dimension in higher side shall be accepted but no extra payment on this account shall be made Note: For uPVC frame, sash and mullion extruded profiles minus 5% tolerance in dimension i.e. in depth width of profile shall be acceptable. i) Fixed window / ventilator made of (small series) frame 47 x 50 mm & mullion 47 x 68 mm both having wall thickness of 1.9 ± 0.2 mm and single glazing bead of appropriate dimension. (Area upto 0.75 sqm.)

25 mm thick

Dismantling doors, windows & clerestory windows (steel or wood) shutter including chowkhats, architrave, holdfasts etc. complete & stacking within 50metres lead : i) Of area 3 sqm and below.

Taking out doors, windows and clerestory window shutters (steel or wood) including stacking within 50 metres lead :

Dismantling wood work in frames, trusses, purlins and rafters up to 10 metres span and 5 metres height including stacking the material within 50 metres lead i) Of sectional area 40 sq cm and below.

Dismantling old plaster or pointing, raking out joints, cleaning and preparing the surface for re-plastering or re-pointing including disposal of rubbish to the dumping ground with all leads and lifts etc.complete as per direction of the Engineer- in-charge.