In the theoretical part of the thesis, the topics of the current way of measuring space and ways to improve the process of creating technical documentation were discussed. An explanation was also given as to why the 3D scanner system is much more useful than the system used before. Then it was explained the capabilities and speed of the 3D scanner. In the theoretical part, it was also explained what the term point cloud means and what are the ways to create a 3D model from a point cloud. There are two types of 3D model creation from point clouds, namely manual model creation and automated systems using various algorithms. The last two chapters of the theoretical part cover the differences between parametric modeling and traditional modeling and what are the advantages and disadvantages of both modeling approaches. The last large chapter in the theoretical part includes the HRN EN 1090 norm, which explains which rules must be followed when making a structure according to the HRN EN 1090 norm. In the practical part of the thesis, the scanning procedure of the object on which the structure will be made according to the HRN EN 1090 norm was explained. After the scanned area, it is explained in detail how to obtain a 3D model of the object from the point cloud, which will be used to position the steel structure. The next chapter explains in detail the construction of the structure. Special attention is paid to the installation of the steel structure inside the buildings, where there were several problems due to the lack of space. It was also explained in great detail the formation of the joints that were necessary for the production of the steel structure and their propagation throughout the entire structure. The last part regarding the creation of the structure explained how to obtain a complete list of materials and the entire technical documentation using the Advance Steel program. In the last part of the practical part, some rules of the HRN EN 1090 standard were explained, which were used to shape the parts of the steel structure. A specification of the welding procedure for one weld on the structure was also created, which explained how to reach the welding parameters. At the end of the thesis, the completed steel structure inside the building was presented and a conclusion was given on the advantages and disadvantages of this system of construction.