Simpson Strong-Tie GLB5A Beam Seat, Gray PaintThe GLB Beam Seat from Simpson Strong Tie is built to provide dependable support for glulam, sawn lumber, or engineered wood beams where they intersect with structural concrete or CMU pilasters. Its rectangular steel plate design features two vertical plates to capture and secure the beam with a single bolt, offering a clean and stable connection. With two #6 x 12" rebar extensions included, the GLB seat is embedded into the form before concrete is