This EPD represent a group of steel structures used in buildings and industrial projects: trusses, braces, beams and columns, made from cold-formed hollow sections (according to EN 10219) and outfitted with connecting parts made from hot-rolled steel plate. All products in the group are made of the same raw materials and with the same production process. Only the outfitting rate (i.e. the percentage of the weight of the final product made up of outfitting parts made of hot-rolled plates) varies from 2 % to 10 %. All structures are designed according to Eurocodes together with national annexes as well as project specifications. All structures are made and CE-marked according to EN 1090. Steel trusses are most often used as roof trusses, typically with a length of 10-40 m, but can be both shorter or longer. The height of the truss is related to the length of the truss, such that the height is in the range of 6-10 % of the length. By using a steel truss, the design can be optimized by adjusting the height of the truss and by combining profiles of different sizes and thicknesses to enable an efficient use of the material. Steel trusses can span great lengths and carry big loads, providing a large open space in the building, enabling flexibility and adaptability of the building. Braces are used as stabilizing elements, either in the roof or in the walls or between columns, stabilizing the building towards horizontal forces. A steel bracing system made from hollow sections is very efficient, as the profiles can be optimized and often be used both in tension and compression. The length and size of the braces varies and is determined according to project dimensions and requirements. Columns are used as load-bearing structures, carrying loads in the vertical direction. The length and size of the columns varies according to building dimensions and requirements. Beams are used as load-bearing structures, in a horizontal position. The length and size of the beams varies according to the building dimensions and requirements. Beams and columns made from hollow sections are efficient, thanks to the large catalogue of different profiles and great torsional resistance. Furthermore, as the steel structures are connected to supporting structures using bolted connections, the structures can easily be dismounted and used in another building in the future, enabling a circular economy. The cold-formed hollow sections are made of recycled steel, with a recycling content of over 99 %. Steel used for outfitting parts, mainly plates, is made of virgin steel. The steel structures are produced in Nordec’s factory in Peräseinäjoki, Finland. Further information can be found at: nordec.com