The assembly features a steel wide-flange beam supporting a 2x wood nailer that is trimmed to match the beam width. Over the nailer sits a 3x laminated timber decking layer, topped with plywood sheathing. A 1/2-inch diameter threaded stud with a standard washer and nut secures the assembly, with the decking notched at the stud location.
Text on the drawing
12 " Ø x 2 3 4 " THREADED STUD @ 2'-0" o.c. W/ STD. WASHER AND NUT NOTCH DECK AT STUD, TYP. 3x LAMINATED TIMBER DECKING 2x NAILER TRIMMED TO MATCH BEAM WIDTH PLYWOOD SHEATHING NOTE: TOENAIL DECKING COURSES TOGETHER WITH 8d @ 30" o.c. AND FASTEN EACH PIECE OF DECK TO NAILER WITH (2) 16d NAILS.
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