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  1. #1
    Join Date
    Jul 2008

    Default Floor Joist Support

    My fiance and I visited a home today that is roughly 80 years old.

    While inspecting the basement, I noticed something odd about the floor framing:

    The concrete foundation wall is topped by a sill plate, as I expected. The header plate (2x8 or 2x10 on edge, I wasn't paying enough attention) was very close to the inside edge of the sill plate, about half an inch away. The floor joists rested on this exposed half inch of sill.

    I thought for a moment that perhaps I was mistaking some blocking for the header plate, but one of the floor joists wasn't quite square, and I got my finger between the end of the joist and the header plate. This particular joist was resting on no more than 1/4" of the sill plate.

    The floor joists ran the width of the house, and were supported in the middle by a tripled joist supported by a wooden column.

    Is such header placement unusual? Is it safe, assuming the header plate is nailed to each joist? I had an awful vision of the first floor collapsing into the basement.

    Any insight is appreciated.


    Bill in St. Louis

  2. #2
    Join Date
    Aug 2007
    The Great White North

    Default Re: Floor Joist Support

    If this is a home you're considering to purchase I would recommend hiring a qualified/certified home inspector to evaluate the home for you.
    "" an ounce of perception -- a pound of obscure "
    - Rush

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