Metal fabrication is a broad term referring to any process that cuts, shapes, or molds metal material into a final product. Instead of an end product being assembled from ready-made components, fabrication creates an end product from raw or semi-finished materials. There are many different fabrication manufacturing processes. Metal fabrication is used for both custom and stock products.

Most custom metal fabricated products are crafted from a range of commonly used metals and their alloys. Metal fabricators often start with stock metal components, such as sheet metal, metal rods, metal billets, and metal bars to create a new product.