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  1. #1

    24x24 return boxing - joist - need a carpenter?

    One of the potential contractors for our job says that if the return is large enough to require cutting a joist in the attic, then the space should be boxed by a licensed carpenter. This guy says he used to build houses for a living and understands the physical forces that a joist is responsible for resisting. He may have said something about a header or a double header.

    Another contractor (who has never claimed to be a carpenter) says they cut large returns and joists all the time and boxing is a simple thing they do and it doesn't require a licensed carpenter. It sounds like he's just going to nail a piece of wood (the horizontal dashes below) for each end of the cut joist


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    What do you think? (sorry dont have time to line up the ascii art)

  2. #2
    Join Date
    Aug 2007
    Location
    Northern VA 38 degrees N by 76 degrees W
    Posts
    5,060
    Quote Originally Posted by Chase M View Post
    One of the potential contractors for our job says that if the return is large enough to require cutting a joist in the attic, then the space should be boxed by a licensed carpenter. This guy says he used to build houses for a living and understands the physical forces that a joist is responsible for resisting. He may have said something about a header or a double header.

    Another contractor (who has never claimed to be a carpenter) says they cut large returns and joists all the time and boxing is a simple thing they do and it doesn't require a licensed carpenter. It sounds like he's just going to nail a piece of wood (the horizontal dashes below) for each end of the cut joist


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    What do you think? (sorry dont have time to line up the ascii art)
    Ask your dealer X builder if he has ever read IRC 802.9

    Openings in roof and ceiling framing shall be framed with header and trimmer joists. When the header joist span does not exceed 4 feet, the header joist may be a single member the same size as the ceiling joist or rafter.

    As long as there is no roof truss involved there is no issue.

  3. #3
    Join Date
    Dec 2010
    Location
    The Quad-Cities area (midwest).
    Posts
    2,631
    Why not just put in two (smaller) returns instead of one large RA?

  4. #4
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    67,880
    Quote Originally Posted by George2 View Post
    Why not just put in two (smaller) returns instead of one large RA?
    Ditto.
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