Installing Wood Floor Over Slab


Old 04-21-02, 04:20 AM
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Question Installing Wood Floor Over Slab

We are getting ready to rip out our carpet in the dining room and living room and lay a new wood floor - tongue and groove planks from Lowes. We haven't pulled up the carpet yet so we don't know the condition of the floor. We are concerned about how level the concrete is. If we find the slab to be uneven, what should we lay under the wood?

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Old 04-21-02, 04:28 AM
Locy's Hardwood
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Is it real hardwood or is it laminate? You may need to seal the concrete for moisture purposes and there are many self leveling products available for concrete. Moisture will be you biggest problem with laying the wood try for more info good luck
Old 04-21-02, 04:35 AM
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Installing Wood Over Slab

Thanks so much - we are laying real hard wood. We had planned to seal the concrete for moisture. I've seen some advice on laying plywood over the slab and then the wood floor over the plywood. Is that the best or can we level the slab and glue the wood floor directly on the concerete?
Old 04-21-02, 12:39 PM
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Installing solid hardwood on concrete

Solid hardwood can be installed in concrete. A polyethylene moisture barrier must be installed over the concrete prior to installation of the 3/4" plywood. Solid 3/4" hardwood is a nail down product. Gluing is an approved installation method. Go to for helpful information. After you purchase the wood flooring, it should acclimate for several days in the rooms where it is to be installed. The wood will need to adjust to the temperature and humidity levels of your home. The HVAC should be running and temperature and humidity at occupancy levels.
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