Abstract—Cold-formed steel structural systems are increasingly being used as primary or secondary structural elements in sustainable construction due to their lightweight, speed of construction, recyclability, and sustainability. However, the inherently low buckling resistance of thinwalled sections results in relatively low strength and ductility in cold-formed steel elements, which limits their performance in long-span portal frame structures, so they are generally used with column heights less than 4 m. This paper reports the results of a numerical investigation on the built-up coldformed steel columns battened for long-span portal frames of 24 m. The built-up sections are formed by four identical lipped channels placed with batten plates. The result shows that built-up battened columns as an alternative to having structure columns taller rather than columns with conventional back-to-back built-up sections, especially when higher compression capacities are required.