ADDN/ ALTN TO OFFICE AREA WITH PROVN OF IRON JALI AND CONNECTED WORKS AT BLDG NO BI-1 (DALHOUSIE BARRACK) INSIDE FORT WILLIAM UNDER GE (FW) KOLKATA

Amount

Dismantling of brick tiles or terracing tiles, single layer on roofs complete all as specified.

Dismantling timber fillets, rails, posts, rafters, purlins, etc under 40 sqcm in section complete all as specified.

Dismantling wall and ceiling boards (fibre, pulp, insulation, etc) or insulation boards/slabs/ blankets, any thickness including cover fillets complete all as specified.

Material and labour for second class hardwood as in scantling, clean swan, in unframed work all as specified and directed.

M&L for mild steel TMT bars 6 to 8 mm dia and over, cut to length, bent to shape required, including cranking bending spirally for lintels and binding with and including mild steel wire (annealed) not less than 0.9 mm dia or securing with clips, complete all as specified and directed.

Providing precast reinforced cement concrete 1:2:4 type B1 using 20mm graded stone aggregate for cover slab set in CM 1:6 including necessary form work.

Cutting holes in brick walls in cement mortar for inserting holdfast or pipes and making good dismantled portion in cement mortar 1:3 or cement concrete 1:2:4 type B1 as required exc half brick but not exc one brick, etc complete all as specified and directed.

Supply and fix steel work in tubular trusses including special shaped washer etc complete using ERW or induction butt welded tubes conforming to IS 1161 – 1979 grade St – 240 all as specified and directed.

S&F for Framed work as in doors or gates of angle or other section with gusset plates, rails, braces etc, complete drilled for fixing of steel sheeting or other covering. Doors etc to be prepared for hanging or sliding with and including either hooks and hinges or steel hanging door fittings (exclusive of steel sheeting or other covering, running rails and guides) and hanging also fastening and fixing to Fe 410W(Gde E-250) quality 'A', etc complete all as specified.

M&L welded steel wire fabric, weight n exc 4 kg per square meter complete , fixed to steel members, all as specified and directed.

Material and labour for Plain Cement Concrete (1:2:4) type B0 using 12.50 mm graded stone aggregate as in copping including weathering slightly rounded or chamfered angles and throating all as specified and directed.

S&F Suspended metal grid Ceiling System with mineral fibre acoustic tiles as per following specifications:- a) Ceiling Tiles:- Mineral fibre acoustic tile of 16mm thickness having sand textured finish with acoustical punchers, bevelled regular edge and 8mm drop in module size of 600 x 600mm. Tiles shall have humidity resistance (RH) of 99%, NRC 0.50 (Average value of Absorption Co-efficient readings taken at 250 Hz, 500 Hz, 1000 Hz and 2000 Hz) as per ASTM C423 standard, CAC of 33db as per ASTM E1414, Light Reflectance ≥85% as per ASTM E-1477, Thermal Conductivity k = 0.052 - 0.057 W/mK, Colour Global White, Fire Performance of class 0/1 as per BS 476 Part 6/7 and Class A as per ASTM E84. b) Metal Grid:- The grid system shall be 15 mm wide T - section flanges colour global white (matching to tile colour) having roll formed double stroke rotary stitching on all T sections i.e. the Main Runner, 1200 mm & 600 mm Cross Tees with a web height of 38mm (all sections). The deflection loading of the system shall be 12.5 kg/m2 (as per standard installation layout mentioned below) and main beam tested as per ASTM C635 (Deflection limit less than L/360) with a deflection loading of 15kg/m. The end details of the cross tee shall be made of pre-hardened steel & fixed to the ends of the cross tee to provide double locking between “cross tee to cross tee” & “cross tee to main beam”. All main beam to main beam and cross tee to cross tee connection shall have a pull out strength of more than 100kg. The T Sections shall be made of hot dipped galvanized steel of 90 gsm as per IS 277 (2003) and pre-painted steel with baked polyester paint with 0T bending capability. The ceiling grid sections shall be fixed to ceiling with 6 mm dia GI hangers upto required length by means of ceiling cleats made out of GI flat 40 x 3 mm size 60 mm long and expansion hold fasteners 12.5mm dia 40 mm long.

M&L for brick work with fly ash brick straight or curved on plane exc 6.0 mtr mean radius built in 1:6 cement mortar complete all as directed.

Taking down cement plaster of any description on brick or stone walls, etc including raking out joints, hacking for key, scrubbing down with water etc complete all as specified and directed.

Dubbing out average 10mm thick cement plaster 1:4, on irregular face of walls (when specifically ordered in writing)

M&L rendering 15 mm thick on fair faces of new brick work/ concrete surfaces in CM 1:6, finished fair & even & smooth without using extra cement complete all as specified and directed.

M&L for preparation of new plastered surfaces of wall and applying two coat of oil bound distemper over a coat of alkali resistant primer after applying 2 mm thick white wall care putty complete all as specified.

M&L for preparation of old decorated plastered surfaces or un-plastered surfaces of wall and applying one coat of oil bound distemper complete all as specified and directed.

All as per item No 18 above but on ceiling.

M&L for preparation of old plastered surfaces of wall after removal of existing treatment and applying two coat of oil bound distemper over a coat of primer after applying 2 mm thick white wall care putty complete all as specified and directed.

M&L for preparation of new wooden surfaces of any description, over 10cm in width or girth not otherwise described and applying two coats of synthetic enamel paint over a coat of primer complete all as specified and directed.

M&L for preparation of old painted wooden surfaces of any description over 10 cm width or girth and applying one coat of synthetic enamel paint complete all as specified and directed.

M&L for preparation of new steel and iron surfaces of any description, over 10cm in width or girth not otherwise described and applying two coats of synthetic enamel paint over a coat of primer complete all as specified and directed.

M&L for preparation of new steel and iron surfaces of any description, n.exc 10cm in width or girth not otherwise described and applying two coats of synthetic enamel paint over a coat of primer complete all as specified and directed.

M&L for preparation of old painted steel and iron surfaces of any description over 10 cm width or girth and applying one coat of synthetic enamel paint complete all as specified and as directed.

S&F Solid PVC Wall Lining consisting of 5mm thick wood grain printed PVC sheet inclusive of solvent cement and fixing at site on PVC frame as per specifications and drawing.

S&F 5mm thick PVC sheet fillet of width 35mm for wall panelling inclusive of fixing on to wall to make PVC Frame as per specification and drawing.

S&F PVC decorative beading of 5 mm thick moulded/deigned of PVC wall panelling inclusive of fixing complete all as specified and directed.

Supply and fixing in repairs 12mm thick plywood, grade BWR, type BB, fixed to existing wooden surfaces with nails. complete all as specified and as directed.

Taking down copper/aluminium point wiring (light, fan, socket or power) complete, including fixture and fittings such as switches, ceiling roses, pendants, regulators, sockets, light fitting etc. removing materials to store for keeping in safe custody or for taking credit (credit for above items should be made as per conditions separately) and making good disturbed surfaces of walls, floors, etc complete all as specified and directed.

M & L for concealed point wiring with FRLSH PVC insulated unsheathed multistranded copper conductor cables of 1.5 sqmm size alongwith one earth continuity conductor with FRLSH PVC insulated unsheathed multistranded copper conductor cable of 1.5 sqmm size through and including PVC conduit terminated in modular switch boards for fixing of switches, sockets, fan regulators etc for the following

One light point or one fan point or bell point controlled by one switch

S & F Modular switch 1 way 6A, 1 module complete all as specified and directed.

S & F Modular type White cover plate with frame 3 module complete all as specified and directed.

S & F Modular type Metal Flush box 3 module complete all as specified and directed.

S & F in repair LED Ceiling light fitting 35/36 W recess / Surface type as in repair, minimum colour temperature 6500K, with suitable driver complete with all accessories internally pre-wired and including connecting up with twin core twisted flexible copper conductor cable complete all as specified and directed. Make: Crompton LCTLSN-36-CDL or equivalent make specified in tender.

M & L for sub main wiring with 2 run of FRLSH PVC insulated & unsheathed multistranded copper conductor of nominal cross sectional area 4.0 sqmm alongwith one run of FRLSH PVC insulated & unsheathed multistranded copper conductor of nominal cross sectional area 4.0 sqmm as earth continuity conductor drawn through and including PVC casing-capping of suitable size, surface type all as directed.

Refixing of point wiring with existing 1.5 sqmm PVC insulated stranded copper conductor single core including PVC conduit of appropriate size concealed in wall, pressed steel concealed terminal boxes of required size and with modular boxes, painting terminal boxes inside and out side with one coat red oxide primer complete with all accessories and all as specified with existing 1.5 Sqmm PVC insulated unsheathed multistranded copper earth conductor to common earth and connected to earth dolly for fan / light / exhaust fan/ bell point controlled by one switch. Note:- 1. M&L for cutting chases on walls / ceiling and making good disturbed surfaces including finishing with cement mortar (1:3) etc; and screws nut and bolts required for fixing shall be deemed to be included in the rate quoted above.

All as per Item No.37 but for One 3 pin socket outlet, 5 Amp independent

All as per item no. 37 but for One 3 pin socket outlet, 5 Amp on the same board with other switches

All as per item No 37 above but using 2.5 sqmm single core multi stranded copper conductor PVC insulated and unsheathed, cable for 3/6 pin 15 Amp socket outlet controlled by one switch on independent board with and including 2.5 sqmm multi stranded copper conductor as continuous earth wire with lugs complete all as specified and directed.

Taking down and refixing Sheet metal enclosure for MCB DB double door single pole & Neutral 4/6/8 /12 as per existing at site way with common bus bar all as specified and directed.

Taking down and refixing MCB 'B' curve single pole neutral , 32 Amps with breaking capacity 10kA

Taking down and refixing MCB 'B' series single pole 6 to 32 Amps, breaking capacity 10KA

Note: Schedule of credit (SCHEDULE OF CREDIT) amount of Rs ________ mentioned on Page No ____ shall be deducted from the total quoted amount of BOQ.

M/S. B. N. CHATTERJEE (BID ID -3229852)

ALOKE ENGINEERING AND COMPANY (BID ID -3229965)

M/S Manna Construction (BID ID -3229470)

BANERJEE CONSTRUCTION (BID ID -3229619)

SHIVAM ENTERPRISE (BID ID -3230076)

SITALA COMMERCIAL AND CONSTRUCTION COMPANY (BID ID -3230065)

SUROJIT GHORUI (BID ID -3230012)