Anchor different cross-sectional structures used. Corner is one of the most important building profiles that is used in composite and single buildings. Angles are used to connect bridges to columns or beams to load-bearing beams and to connect columns to slabs in the foundation, as well as to build columns and trusses. Also, in some structures, such as structures related to elevators, chopped corners are used, which is called the bite corner. A corner is used to connect columns to bridges or beams to beams that are load-bearing, and to connect columns to foundations and to build columns and trusses.