Fabrication is the process of constructing products by combining typically standardised parts using one or more individual processes. For example, steel fabrication is the production of metal structures using a range of processes such as cutting, bending and assembling.

A Fabricator, or Assembler, uses machines and hand tools to make components for larger products, such as airplanes or machines. Their duties include reading blueprints and schematics, aligning components and using hand tools or machines to complete the assembly process.