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Discussion Starter · #1 ·
We have a hump in the middle of our kitchen floor.
I opened up a 4 X 6 section of the floor and found that half the kitchen had joists running north south and the other half have them running east, west. Where these two sections meet there is about a half inch difference in height. Hence the hump.
Does anyone have any suggestions about the easiest way to solve this problem.?
The floor board is 5/8 in plywood with 1/2 OSB on top. I was thinking of using a leveling compound, just in this area. Would that work? Would I use it on top of the plywood and put the OSB on top of that, or would I put the leveling compound on top of the OSB board. Obviously, I am a novice, so any advise would be muchy appreciated.
 

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You have this opened up---can you take a picture?

Are the two floors level with a step or is one side level and the other pitched?

How you fix this has every thing to do with what you are installing on top.

Ceramic tile---laminate---sheet goods--hardwood???
 

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Tileguy
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Maybe I'm not understanding it. But, how would applying patching cement over the high spot lower it?:confused1:

Jaz
 

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Might be angle/lighting but the doubled joist running north-south in lower right pic looks like not well attached to the e-w joist. I'd redo that joint, leveling the tops of the joists and install joist hangers. This whole set-up looks odd with joists are right angles and a (supporting?) wall underneath part of this system. Are you confident of the strength of this system? Now is the time to fix it if not.
 

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Does the stud wall beneath these support these joists and are they connected?
In short, you'd have to cut connections of the floor joists, jack up, push, lift, grunt the floor joists level with rest of floor joists, then connect them using joist hangers for best strength.
But, since I'm not there and can't see whole picture, it is difficult to say what will happen when you cut the connections (will other parts of the structure be negatively affected?).
Perhaps pictures from down looking up and/or other shots.
I'm sure others will chime in.
 

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The wall has got to be carrying the load, that one joist can't carry it. I can't see the rest of the joists to the right so I can't figure out why they framed the floor like that. Can you post a picture of the rest of the floor joist to the right of what looks to be a header tied into one of the floor joist that the wall supports.

If this were mine I would fix it right while I was the far along.
 

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Discussion Starter · #10 ·
I thought I was probably in over my head and now I'm sure of it.
I guess I better get some help. Where should I look to find someone with this expertise?
 

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John, you can fix that, we just need to see the whole picture to see what is going on. Can you post a picture showing to the far right which will include the rest of what looks like a header? I went back and looked closer and the wall is holding up the section that looks like a header is hooked into another header. It may not be as bad as it looked at first.
 

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That did help, there is a wall under the headers if that is what they are. I couldn't tell if the support wall had all the studs at 16 centers or not, it looked like some of the studs were missing. If there are some studs missing you will need to install them.

What I would recommend is shim the low joist to be level with the others then tighten the joints good and tight and if possible install hangers especially where the headers tie in to each other.
 
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