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  1. #1
    Join Date
    Sep 2009
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    McAllen, Texas
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    Default Pressure treated for wall studs

    Can a load bearing wall have pressure treated studs or are the only allowed to be used for bottom plates.

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    Richard Flores
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    www.premier-rgv.com

  2. #2
    Join Date
    Sep 2008
    Location
    Texas
    Posts
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    Default Re: Pressure treated for wall studs

    I don't see any problem with it. PT wood is just regular wood that has been treated.

    That is an interesting question though!


  3. #3
    Join Date
    Sep 2009
    Location
    McAllen, Texas
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    Default Re: Pressure treated for wall studs

    Thanks for the quick reply. A typical homeowner that claims he was a contractor said that you can't use it. I had never heard of it, so I guess I am going to have to look at my Code book..

    Richard Flores
    Professional Inspector TREC # 8139
    www.premier-rgv.com

  4. #4
    Join Date
    Sep 2008
    Location
    Texas
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    745

    Default Re: Pressure treated for wall studs

    As long as the PT lumber is grade stamped....I don't see a problem.

    From the 2006 IRC

    SECTION R602
    WOOD WALL FRAMING
    R602.1 Identification.
    Load-bearing dimension lumber for
    studs, plates and headers shall be identified by a grade mark of
    a lumber grading or inspection agency that has been approved
    by an accreditation body that complies withDOCPS 20. In lieu
    of a grade mark, a certification of inspection issued by a lumber
    grading or inspection agency meeting the requirements of this
    section shall be accepted.

    R602.1.1 End-jointed lumber.
    Approved end-jointed lumber
    identified by a grade mark conforming to Section
    R602.1 may be used interchangeably with solid-sawn members
    of the same species and grade.

    R602.1.2 Structural glued laminated timbers.
    Glued
    laminated timbers shall be manufactured and identified as
    required in AITC A190.1 and ASTM D 3737.

    R602.2 Grade.
    Studs shall be a minimum No. 3, standard or
    stud grade lumber.

    Exception:
    Bearing studs not supporting floors and
    nonbearing studs may be utility grade lumber, provided the
    studs are spaced in accordance with Table R602.3(5).




  5. #5
    Join Date
    Sep 2009
    Location
    McAllen, Texas
    Posts
    34

    Default Re: Pressure treated for wall studs

    Thanks..That is exactly what I was looking for...

    Richard Flores
    Professional Inspector TREC # 8139
    www.premier-rgv.com

  6. #6
    chris mcintyre's Avatar
    chris mcintyre Guest

    Default Re: Pressure treated for wall studs

    It may not be a code issue but IMO it is not a good idea for a couple of reasons.
    1) Treated lumber shrinks as it dries and not at the same rate. You can cut the ends of the decking boards in a straight line and 6 months later they will vary in length a 1/2" or more.
    2) If you use PT studs you would have make sure everyone was using the right fasteners for sheathing, wall ties, siding, drywall, trim, cabinets, etc...


  7. #7
    Elliot Franson's Avatar
    Elliot Franson Guest

    Default Re: Pressure treated for wall studs

    With the known shrinkage and warpage issues in CCA and other pressure-treated dimensional lumber, it would be unwise, in my opinion to use this for wall studs. Just my opinion.

    Last edited by Elliot Franson; 07-17-2010 at 09:59 AM.

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