Application of light steel thin-walled structures opens up possibilities of erecting construction quality. Advantages of light steel thin-walled structures are reliability, long operating life, wide architectural opportunities, small unit weight, resistance to dynamic loads, fast assembly of structures, low operation value and chance of efficient monitoring and reconstruction. Furthermore, these structures are under construction both houses, and buildings and constructions of industrial function. Also, light steel thin-walled structures are very popular in Great Britain (20%), Sweden and Japan (15%), Canada (10%). Here means percent of general construction volume. For light steel thin-walled structures distribution in the Russian construction market, it is necessary to involve investments. “International association of light-gauge steel construction” was founded for development building technology with light steel thin-walled structures application.