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Thread: Floor 4" off

  1. #1
    Join Date
    Aug 2008

    Default Floor 4" off

    One of those days with a bunch of ideas but not sure which is best. The kitchen floor from one end to the other is about 4" off. This is a 107 year old house. In the basement under the kitchen, it is obvious the foundation and first floor were "re-supported" where the rear corner of the house sagged. The problem is they didn't jack up the house the just put in a new beam across the back of the house. In that section the basement floor is wood. There are cut outs in the floor where they dug out the dirt and installed cement piers for the lally columns supporting the beam. It appears they did a good job of supporting but had know intention of leveling. There is a 4" deficit from the entrance of the kitchen to the back wall. What is the best way to go 0 to 4. I thought of cutting the floor joists loose from the wall studs and lifting them but it is balloon framing and the wall studs go 20 feet up. I'm uncomfortable with removing anything nailed to wall studs when it comes to balloon framing. I wonder if I should just cut wedge shape 2 by to go on the floor over the floor joists. is that okay or is it the "half @ss" way?
    Last edited by rwhnze; 11-24-2008 at 02:32 AM.

  2. #2
    Join Date
    Aug 2008
    San Diego, CA

    Default Re: Floor 4" off

    That's a pretty good one.

    Not knowing about the new perlin that supports the floor joists, I wondered about inserting between the perlin and the lally column's head, a 4" block at one end and making adjustments down the line with wedges to take up the slack and make it solid.

    If not, your idea of putting something on top of the joists could work. Another way to do that would be strip off all the sub-floor and then nail a 2x10 or 2x12 to the side of the floor joist, with it sticking up 4" above the joist at one end of the room and letting it slope down to the other end as it runs. Do this for every joist and you'd have a pretty solid base for your underlayment. It would be the same as having the original joists, only level. Just use dry-line around the room to make sure you get it level and uniform.

    Good Luck.

  3. #3
    Join Date
    Jun 2007
    Fayette County, Ohio

    Default Re: Floor 4" off

    Plus jacking part of a house up 4" is a long slow process if you don't want structural damage.
    I too, would go with the wedges.
    Be sure you live your life, because you are a long time dead.-Scottish Proverb

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