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        Hardwood flooring over concrete slab Sign In/Join 
        posted
        I am planning to install hardwood floors in my living room. The room is a slab on grade and I already know that it pitches to the center. I would like to use 3/4" thick hardwood that is nailed in and not glued. I belive that I need a 1.5" nail at most otherwise it will hit the concrete.

        My question which method is best for leveling the floor:
        1. Self-leveling cement and then plywood or
        2. just 3/4" plywood with shims.

        Next, should I used a trowel on vapor barrier or just felt paper for the underlayer between the wood and concrete?

        Thanks for your help.

        Frank

        This message has been edited. Last edited by: Frankie_t,
         
        Posts: 3 | Registered: Jan 13, 2014Reply With QuoteReport This Post
        posted Hide Post
        Your best option is to use a floating floor...
        Me personally.. I would never just use plywood over concrete only and expect the nails to hold.
         
        Posts: 888 | Registered: Jan 29, 2010Reply With QuoteReport This Post
        Picture of SturdyNail
        posted Hide Post
        Frank, I don't know what part of the country you live in, but in cold climates that slab can be very cold. Part of my house is on a slab. We have laminate with foam backing covering it, but the floor is still very cold. So, if you live in a cold climate, I'd be looking for ways to create a warm floor or, at least, a very well insulated one.
         
        Posts: 326 | Location: Western NewYork | Registered: Jan 26, 2012Reply With QuoteReport This Post
        posted Hide Post
        What would you be nailing to? You would have to level the floor to within 1/8" before installing any kind of floor, so if your pitch is greater than that, you would have to correct that with a self-leveling grout before doing anything else. Then you would have to put something down to nail to, and as ron45 suggests, plywood on concrete is iffy. I would tend to agree that a floating "engineered" wood floor is your best option.
         
        Posts: 841 | Location: Rogers City, MI | Registered: Sep 25, 2007Reply With QuoteReport This Post
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