A deck beam is a structural component of a deck that supports the weight of the deck and any load placed on it. It is typically a horizontal member made of wood, steel, or composite material and is positioned perpendicular to the joists to provide additional support. The beams are usually supported by posts or columns and are attached to the joists using metal hardware or through bolting. The size and spacing of deck beams are determined by local building codes and the weight they need to support.
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