A supporting beam is a structural element used to provide support for a structure. It is typically made of wood, steel, or concrete and is used in construction to hold up walls, floors, and roofs. The most common types of supporting beams are joists, girders, trusses, ties, and ibars. Joists are horizontal members that span between two supports and are used to support floors and ceilings. Girders are large beams that span long distances and are used to support heavy loads. Trusses are triangular frames that are used to support roofs and other structures. Ties are short pieces of metal that connect two beams together. Ibars are steel beams that are used to support walls and other structures. All of these elements are essential components of a supporting beam and are used to provide stability and strength to a structure.