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Thread: Engineered wood flooring

  1. #1
    Join Date
    Jun 2007
    Location
    New Jersey
    Posts
    75

    Engineered wood flooring

    I would like to remove some carpeting which is laying on plywood & then put wood flooring over the plywood which is in turn on top of concrete. I posted earlier asking about Pergo but found out I'd have to remove the plywood on the floor, I don't want to do this . It was suggested that I use "engineered" wood for the floors. Does anyone know if I can put this over the plywood? Is this a job a relatively handy person can do or should I hire a professional to do it?
    Thanks
    Dennis

  2. #2
    Join Date
    Nov 2006
    Location
    Central CA
    Posts
    797
    If there's concrete under the plywood then that kinda rules out nailing the engineered flooring down and leaves you with gluing it down.

    Generally, engineered flooring will require a fairly flat surface, usually about 1/8" or less over a ten foot span. If there is much more variation than that (whether you nail it or glue it), you will get voids under the flooring and you can/will have problems.

    I wouldn't use anything less than 1/2" material and would recommend using 3/4" thick flooring. This will be pricier but it will also (usually) give you better floor.


    hth
    Thanks, Mark.

    Custom Bonehead.

    My diet is working good. I'm down to needing just one chair now.

    "Just think how stupid the average person is, and then realize that half of them are even stupider!" --George Carlin

  3. #3
    Join Date
    Jul 2007
    Location
    Liberty, IN
    Posts
    25
    Why would you have to remove the plywood to put down Pergo? Pergo is made to go over existing floors. If the plywood looks good, put the Pergo over it.

  4. #4
    Join Date
    Jun 2007
    Location
    New Jersey
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    Chris
    Both the pergo instructions & a call to Pergo said if you have plywood over concrete you have to remove the plywood & lay the Pergo on the padding over concrete, doesn't make sense to me but Pergo must know what they're doing
    Dennis

  5. #5
    Join Date
    Jul 2007
    Location
    Liberty, IN
    Posts
    25
    The only thing I can think of is it may trap moisture in the plywood & cause it to swell. Do you know if there is a vapor barrier between the plywood & concrete? Have you checked other brands of flooring?

  6. #6
    Dennis, take a look at this article on laying engineered flooring from This Old House.

  7. #7
    Join Date
    Oct 2006
    Location
    Placitas, NM in the foothills of the Sandia Mt
    Posts
    688
    Dennis,
    I'm puzzled. I put Pergo over ply with no problems. I know others who have Pergo right over the concrete (with the Pergo brand foam underneath. Only thing I can figure is there might be trouble if one sheet of ply is considerably higher than its neighbor...

    By the way, I wouldn't worry about the stuff moving either. The stuff is heavy. I tried to reposition a few rows one time and had to take it apart to move it.
    Don't believe everything you think!

  8. #8
    Join Date
    Jun 2007
    Location
    New Jersey
    Posts
    75
    Jesse
    The problem appears to be putting Pergo over plywood which is over concrete, for this type installation Pergo says you have to remove the plywood (which I don't plan to do)
    Dennis

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