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  1. #1
    Join Date
    May 2008

    Default Subfloor Removal Advice Needed


    Decided to install hardwood and was told the particle board subfloor had to be replaced with plywood.

    The subfloor obviously runs beneath the walls and I was wondering how close to the walls I should cut to remove the subflooring and with what tool? If you leave 3-4 inches of PB around the perimeter of the room wont that pose a risk of the hardwood lifting in those areas? I was thinking of just dropping plywood over the PB but would cause a transition problem with the hallway.

    I have attached a picture of the subfloor as I dont understand this construction technique and I was hoping someone might know. My guess is it's an expansion joint but I have never seen this used before in a house.

    The builders left a 1 inch gap between 1 row of PB sheets and toenailed in a 1x2 into the gap. This runs the entire length of the room. In the photo I chipped away some of the leveler to see what was beneath.

    The framers then proceeded to literally dump in floor leveler to conceal the gap but ended up making a small speedbump under the carpet.

    Any ideas and if so should I copy this with the ply?

    Sorry for the long post. Just trying to get as much info as I can without asking too many questions.

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