For designing an exterior deck, does the wood need to be specified as pressure treated wood? IBC Section 2304.11.4 only talks about wood in contact with ground to be pressure treated. I would specify regular wood members for tthe entire deck taken into account the wet factor but not the incising factor (non PT). Even for post that have a stand-off, I would think they are not considered to be in contact with the ground (Exposed earth). Any insights would be greatly helpful?
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