Is it okay to apply the Repetitive Member Factor to a 3-ply wood beam? I have done it in the past based on my reading of the NDS but thought I would inquire here. I have an existing 3-Ply wood beam and since the NDS says 3 or more members in contact or spaced not more than 24", I assume I can use the Cr factor of 1.15. The beam is currently 9% over without the Cr.
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