BackgroundCold-formed steel (CFS) members are economic solutions that have been widely used in civil engineering. They have been used for more than a century since the first flat sheets of steel were produced by the steel mills. CFS sections have been popularized in the structural sector, particularly track and stud for plasterboard partitioning support. Its high strength with good forming properties is more environmentally friendly and recyclable. They are mass-produced and manufactured by bending a thin sheet of steel to a desired shape allowing efficient profiles to be used in many applications. A major advantage over hot-rolled steel shapes is the high tensile strength and ductility which can be easily shaped and sized to meet any particular design requirement. A much larger variety of choices for steel designers as primary load bearing members can be provided. Another advantage of CFS is its great flexibility that a different cross-section shape which is the key element in enhancing the strength can be practically formed. However, only limited cross-sections can be adopted. Strength-based minimum weight and minimal amount of steel have always been an important aspect in the design and manufacture processing of lightweight structures. Some important properties of CFS that can be simply designed and developed with advance technology are trend of increasing yield stress to be a higher quality steels. These include: trends to be a more complex section shapes, with a reduction in thickness and increase of local stability; trends to be simply connected and trend to maximize assembly of prefabricated units. Minimal low interaction of cold-formed steel with other materials and components is crucial for further design and development.