Could be a BC/AB difference too. I should dig out my BC Building Code book...wonder where it is.
I think it depends on material as well could be 5/8 for ply but should be thicker for OSB and could be some weird number like 23/32" which is basically 3/4". Also joist span is between 16-24" typically so that can play a role as well.
12-07-2011, 06:48 PM
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