New answers tagged plywood
The OSB these days has way better glues/resins than ten years ago. OSB, especially subfloor, holds up to moisture better than CDX. Advantech is one of the best and it is an OSB product! I wish people would get over their unbased biases and chill out!
If those stringers are unsupported by an underlying structure such as a substantial mullion, it would allow unacceptable flexion at the joint under high wind conditions IMO. Even with a solid wood stringer you might have trouble over that long horizontal span. Might I suggest that you use your idea but with the plywood in a vertical orientation? I know this ...
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