The great freedom of the final appearance-design of the structure, enabled by the advantages of the light steel structure, is used in the construction of buildings for business activities, such as restaurants, sandwich shops, offices. The assembly of the structure as well as the complete design of the building with modern building materials takes place in a short period of time, without losing the final quality, both structurally and visually, and at the same time an ecological building is obtained with all the necessary thermo-acoustic characteristics for comfortable use of the business building.