Support beams are structural components used in construction to provide stability and strength to a building. Joists, which are six-letter long beams, are used to support floors and ceilings. Ties, which are four-letter long beams, are used to connect walls and columns. I-bars, which are five-letter long beams, are used to support roofs and other structures. Together, these support beams provide the necessary strength and stability for a building.