Steel construction is also called steel fabrication,it have many advantages They are super-quick to build at site, as a lot of work can be pre-fabbed at the factory. They are flexible, which makes them very good at resisting dynamic (changing) forces such as wind or earthquake forces. A wide range of ready-made structural sections are available, such as I , H, U and angle sections They can be made to take any kind of shape, and clad with any type of material A wide range of joining methods is available, such as bolting, welding, and rivet.