General heavy fabrication is a type of manufacturing that includes a combination of processes to make components of thick plate. Fabrication is usually considered heavy fabrication when the plate's thickness exceeds 15 millimetres. The thick plate requires heavy machinery; for example, instead of using laser cutting, gas or plasma cutting might be more efficient. Also, presses need to be much more powerful to bend pieces of material. Naturally, this means that there are special workshops that have equipment and machinery to take care of the heavy fabrication.
The heavy fabrication manufacturers make components that often go into industries that make products which needs to withstand great forces such as the heavy vehicle or construction industry. It can be small components or large beams used in constructing buildings.