supplying and installation of book racks stacks and book stoppers for vivekananda library cdlu sirsa , double faced book racks with main unit: steel with pre-laminated 18 mm thick board (greenlam/ greenply/ archid/ 1stquality only (economical range of these companies will not be accepted) on the sides and top, no steel panel on the sides overall dimensions- 90” x 36” x 22.5”, main unit shall consist of one rack with 14 shelves on both sides with lipped edges, shelves with plain surface (i.e. shelves without slidable book stoppers), 20 gauge steel, adjustable i.e. slotted angles (18 gauge) for adjustment of shelves, one book stopper of size 7” x 7” (height x width), 16 gauge per shelf, powder coated, colour of steel parts (stanchion, shelves etc.) of racks and laminated board shall be as per choice of the library. , double faced book rack add-ons: steel with pre-laminated 18 mm thick board (greenlam/ greenply/ archid/ 1stquality only (economical range of these companies will not be accepted) on the top; no steel panel on the sides; overall dimensions - 90” x 36” x 22.5”, add-on shall consist of one rack with 14 shelves on both sides with lipped edges; shelves with plain surface (i.e. shelves without slidable book stoppers), 20 gauge steel, adjustable i.e. slotted angles (18 gauge) for adjustment of shelves, one book stopper of size 7” x 7” (height x width), 16 gauge per shelf, powder coated, colour of steel parts (stanchion, shelves etc.) of racks and laminated board shall be as per choice of the library. , book stoppers: size 7” x 7” (height x width), made of 16 gauge of steel sheet with smooth rounded edges and corner; powder coated, colour as per choice of the library.