erection of ( two tier ) walkway of total pressure conveying line , bottom-ash , ash slurry line and lp or hp water line including handrail and foot guard of unit-6 , stps . , erection , fitting and fixing by welding means of approved gi electro forged gratings # size of gratings: 6000 mm x 1000 mm ( l x w ) including cost of necessary labour charges , consumables with all complete as per direction of eic . [ excluding supply of material] , erection , fitting and fixing of approved hand railing with 32 nb gi pipe including cost of cutting , welding , necessary labour charges with cost of consumables all complete as per direction of eic . [ excluding supply of material] , erection , fitting and fixing of approved quality gi strip of size 100 x 3 mm including cost of cutting , welding , necessary labour charges with cost of consumables all complete as per direction of eic . [ excluding supply of material] , installation charges for g . i . structural works in columns , beams etc . with simple rolled structural members ( e . g . joists , angle , channel sections conforming to is: 226 , is: 808 & sp ( 6 ) - 1964 connected to one another with bracket , gussets , cleats as per design , direction of engineer-in- charge complete including cutting to requisite shape and length , fabrication with necessary bolting , metal arc welding conforming to is: 816- 1956 & is: 1995 using electrodes of approved make and brand conforming to is:814- 1957 , haulage , hoisting and erection all complete . the rate includes the consumables such as electrodes , gas and hire charge of all tools and plants and labour required for the work including all incidental charges such as electricity charges , labour insurance charges etc payment to be made on the basis of calculated weight of structural members only in finished work as per is specified weight . the rates are considered for a height of erection 8m . / 2nd floor level from the ground . i ) for structural works using joists , channels and angles of specified section weighing less than 22 . 5 kg/ m . [ excluding supply of material]