In steel structures, the construction period is shortened with the pre-production manufacturing feature. These structures offer fast production and assembly opportunities to the customers. Steel structures are light and economical compared to reinforced concrete structures. Steel structures are designed as a much lighter structure in line with the density and mechanical behavior of the material. When the project is considered as a whole and all aspects, direct and indirect benefits are taken into account, it is seen that steel structures provide a serious economy to the building owner in the long run. They are earthquake resistant structures. Steel structures are lighter and more ductile, meaning less earthquake load is transferred to the structure, so there is less earthquake risk and the structure is safer.