Roll forming also spelled roll forming, is a type of rolling involving the continuous bending of a long strip of sheet metal (typically coiled steel) into the desired cross-section. Roll forming involves uncoiling a long strip of metal and sending it through several stacks of rollers set up in a long line. It is performed at room temperature, hence the moniker ‘cold’, which is often dropped. Roll forming at room temperature maintains or even improves the properties of the feedstock material. The strip passes through sets of rolls mounted on consecutive stands, each set performing only an incremental part of the bend until the desired cross-section (profile) is obtained. Roll forming is ideal for producing constant-profile parts with long lengths and in large quantities.