The goal of this bachelor’s thesis is the design of steel loadbearing structure of the hangar for small planes, situated at the locality of the airport in Kunovice. As the basic material was chosen steel S355 and for selected elements steel S460. Truss roof of the object was designed as saddle, pitched at 15,9°. The plan of the object is rectangular with the dimensions 51,0 m x 35,0 m and the height of the building in the middle of its span is 16,5 m. Computational model was created by using the software Dlubal RFEM 5.03. The reports were with the exceptions created by following the valid standards and verified by the help of the software