Project has an existing Glulam Beam 5.25" wide x 17.75" deep spaced at 15'-0" on center. This Glulam Beam is supported over Glulam beams 7" wide x 37.25" deep. The GLB 7x37.25 are spaced 28'-0" on center. This gives the GLB 5.25x17.75 a span of 28'-0" and it has a 3'-6" cantilever at one end...