Providing and fixing factory made ISI marked un-insulated metal fire rated doorset assembly for all non egress application areas like shafts etc. consisting of galvanized iron steel frame and single leaf shutter including necessary hardware accessories conforming to FD 120 UD classification of IS 3614 :2021 with fire rating of 120 minutes integrity. The door frame and shutter shall be made out of minimum 1.20 mm thick GI Sheet with minimum 120 GSM Zinc coating as per IS: 277. The entire fire rated doorset assembly shall be tested in unlatched condition as per IS 17518 (Part -1): 2022 Frame : The frame shall be of minimum size 90 x 60 mm with grooved profile to take appropriate fire rated smoke seal, having mitred cut joints (self tab/screwed assembled at site) and provided with appropriate reinforcement suitable for taking hardware and flush fixing as per IS: 4351. The smoke seal material shall be of EPDM tested in accordance with ASTM E-84 of minimum size 10x4 mm, fixed within the inbuilt groove or stuck with adhesive on the entire perimeter of the frame. The door frame shall be fixed in all four sides to masonry wall opening with CSK/Hex headed fasteners of minimum 8 mm dia size and minimum 80 mm long with 8mm dia polyamide sleeves @ 4 number at each on vertical sides (up to 2100 mm height) and 2 numbers each on top and bottom sides. Door shutter: The double skin single leaf door shutter shall be consisting of minimum 46 mm thick and having box like structure, slots cut and holes punched, for fixing of hardwares with stiffeners as per IS: 16074 including Resin bonded honey comb paper core infill material of density 5 kg/cum. The door shutter shall be mounted on the frame with SS 304 grade ball bearing butt hinges as per EN 1935 : 2002 or butt hinges as per IS 12817 both, of minimum size 100x75x3 mm @ minimum 4 numbers up to 2100 mm / 2400 mm height or as per test evidence, which ever is more, fixed with M6 25 screws. All doors shall be factory prepared for receiving appropriate hardware and provided with necessary reinforcement for hardware accessories. Hardware Accessories : Fire doorset assembly shall be provided with one number fire rated SS 304 shaft mortise dead lock, one number 50-80 mm Back Set with minimum 20 mm Square forend with allen key including SS304 dead strike plate conforming to IS: 16015:2022/EN 12209, one number recessed flush pull handle (SS304) of minimum size 40 mm x 120 mm, as approved by Engineer-in-Charge. Finishing: Both frame and door shutters shall be factory finished with polyester powder coating of minimum 50 microns thick and shall have passed salt spray test as per IS:13871 of approved colour and shade all complete as per manufacturer's specifications and as per direction of the Engineer-in-charge. Installation: The hollow space in the door frame shall be filled / injected with fire rated self extinguishing type polyurethane foam (PUF) after installation at site of work. The rate shall be inclusive of complete fire rated door assembly, supply and installation by the approved manufacturer.