Steel structures produced from carbon steel by means of cutting and welding with surface treatment afterwards. Structures supplied for erection on building site primed, painted or hot dip galvanized. Steel structures include components such as trusses, columns, beams, HSQ (WQ) beams, braces. The structures are made of unalloyed or low-alloyed steel, and they are used as building components in the construction industry. The results in this EPD represent the simple average of production. The market area is Nordic countries.