Conventional Steel Fabrication is when teams of steel fabricators cut members of steel to the correct lengths , and then weld them together to make the final structure. This can be done entirely at the construction site , which is labor-intensive , or partially in a workshop , to provide better working conditions and reduce time.
Bolted Steel Construction occurs when steel fabricators produce finished and painted steel components , which are then shipped to the site and simply bolted in place. This is the preferred method of steel construction , as the bulk of the fabrication can be done in workshops , with the right machinery , lighting , and work conditions. The size of the components are governed by the size of the truck or trailer they are shipped in , usually with a max length of 6m (20ft) for normal trucks or 12m (40ft) for long trailers. Since the only work to be done at site is lifting the steel members into place (with cranes) and bolting , the work at site is tremendously fast. Pre-engineered buildings are an example of bolted steel construction that is designed , fabricated , shipped and erected by one company to the owner.
Light Gauge Steel Construction is a type of construction that is common for residential and small buildings in North America and parts of Europe. This is similar to wood framed construction , except that light gauge steel members are used in place of wood two-by-fours. Light gauge steel is steel that is in the form of thin (1-3mm) sheets of steel that have been bent into shape to form C-sections or Z-sections.