Prefabricated Steel structures are medium to large size steel buildings consisting of primary and secondary steel structural frames resting on civil foundations and provided with suitable roofing, side cladding and water down take arrangements. Each Prefab steel building is separately and individually designed to suit the specific application (end use), size and geographical location. All the primary structural members are shop fabricated as per the specific design, thus ensuring optimum use of steel and thereby reducing the overall cost of the structure considerably. Secondary structural members (purlins, girts, etc) are usually hot rolled & cold rolled steel sections and the roofing and side cladding can be done using bare/ colour coated galvalume/ G.I. steel sheets.