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Seems to me this MUST have been 'talked about' here an there... but in addition to my general quiry I've got some very specific questions. In general, I'm wondering what the upside of using plywood is over OSB as sub-siding. I'm figuring there must be some advantage as I occassionally see builders using it despite it's costing a third again as much.
Also ... as to OSB 3/4 t&g sub-flooring ... any reason to go with plywood there? Here in the PNW the OSB runs about $20 a sheet -vs- $30 a sheet for sturdifloor.
Lastly, any thoughts or wisdom on the relative WEIGHT and the relative STRENGTH of 1/2" OSB to Ply? I'm going to be working alone on a very high, narrow addition and these factors will matter.
Any feedback much appreciated - - Thanks!