Beam with a corrugated wall is a structure consisting of belts of arbitrary cross-section and a thin metal wall which is curved in the transverse direction. Currently such structures are used as beams, floors in multi-floor residential buildings, large-span beams covering in industrial buildings, dome design elements in administrative buildings. In this article we study the use of corrugated beam and its comparison with the classical I-beam. It is shown that the use of corrugated beam has a number of advantages and some disadvantages. Based on the research conclusions were made: Corrugated beams help to save material because of the reduced wall thickness and the curved shape. Strength of corrugated beams is only slightly above the strength of normal beams. Replacing conventional truss or I-beam with corrugated beam is not always possible.