As the cost of steel is increasing day by day and the use of steel is unavoidable in the industries. The construction practices calls for the best aesthetically look, high quality and speedy construction, economical with innovative ideas as the steel is mostly used construction material in industry. Hence to achieve the economy in the steel structure, it is necessary to use the optimum quantity of steel. In this study, an attempt to present comparative study of Conventional Steel Buildings (CSB), Pre Engineered Building (PEB) and Cold Formed Steel(CFS) Warehouses. The comparison has been done which includes the truss of span 20m, 25m and 30m with various column spacing and the length of shed is 60m. All the trusses are modelled, analyzed and designed by using STAAD-Pro V8i software. The economy of the structure is discussed in terms of quantity of steel.

Keywords : Ware House, CSB, PEB, CFS, Optimum, STAADPro.