Details: taking down chowkhats or frames with shutters without taking off shutters from the frame exceeding 1.5 sqm but not exceeding 4 sqm each and all as specified . s & f solid pvc door frame of size 50 mm x 47 mm made out of 5 mm plain colour pvc sheet reinforced with m s square tubes , s&f in opening as per specification & drawing given in ssr-2022. complete all as specified and directed by engr-in charge. s&f factory made solid panel pvc door shutter 30 mm thick (style) consisting of frame made out of m s tubes for top & bottom rails m s frame shall be covered with heat moulded plain colour pvc ‘c’ channel having a pvc sheet of 20 mm width struck in side with solvent cement for stiles and plain colour pvc sheets 5 mm thick for top rail, lock rail & bottom rail on either side & as gap insert for tap rail & bottom rail, paneling of plain colour pvc sheets to be fitted in the ms frame walded/sealed to the stiles & rails with suitable pvc sheet beading and joined to getger with solven