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pbcleff 03-02-2013 09:12 PM

Low Spot in Subfloor
I bought a house (a bi-level) about 4 years ago and immediately tore out a nasty, dog-hair infested carpet and installed a laminate floor. Over the years from walking on the floor, we have found that their is a low spot in the sub-floor as soon as you get to the steps. I have determined this because the laminate boards are separating on the side where the boards slide together (short side). I have already tried sliding the boards back together and it worked for a short time, but then the boards separated again.

I am looking for ways to fix the issue. I am aware that I may have to remove the flooring and then use a self-leveling product, but I was hoping there would be another solution. I am open to all ideas.

joecaption 03-02-2013 10:30 PM

Have you looked under the floor in the crawl space or basement to see why it's sagging?

pbcleff 03-03-2013 12:11 PM


I do not have access to look underneath the floor at the structure because the floor below has a finished ceiling. I do know that there is a solid I-beam under the location where there is a low spot in the sub-floor. In my opinion, I think the reason why a low-spot has formed is because it is at the top of the steps so it is heavy traffic area and it is possibly between two beams.

joecaption 03-03-2013 12:17 PM

Or someone cheaped out and only used a 1/2 subfloor.

pbcleff 03-03-2013 12:19 PM

Very well could be possible. The house was built in 1979, so it has some age to it. Any ideas/suggestions on how to fix it?

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