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Re: 2x6 Studs or 2x4 Studs for a two story building?

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One aspect of the discussion of using 2x4 vs. 2x6 studs which has not been mentioned to my knowledge is the much better quality of building when 2x6 studs are used. 2x4 walls are much more uneven and they buckle and twist - not from load but from warping.
Stan Scholl, P.E.
Laguna Beach, CA
On Thu, 14 Jul 2005 00:38:03 -0700 "Thor Matteson" <thor(--nospam--at)> writes:
I have not seen this mentioned yet---
When you look in the tables, the stud size and spacing requirements are based on the number of floors supported, i.e., 2x4's at 16 inches OC may support "one floor, roof and ceiling"  (UBC/CBC Table 23-IV-B, p. 2-305).  If you have a concrete slab-on-grade floor,  then 2x4's at 16 inches can support a framed floor above plus a roof and ceiling--in other words, 2x4's can be used in the first floor walls of a two-story house with SOG first floor.