Engineered hardwood over particle board

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Old 08-23-18, 07:44 PM
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Engineered hardwood over particle board

Can I screw 1/2 plywood over 3/4 particle board too do a glue down engineered hardwood floor? The room is 40' x 30' so floating is not an option since I don't want seams to allow for expansion .
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Old 08-24-18, 06:26 AM
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Check with the manufacturer of the flooring you intend to use. Some have posted to this forum that did not follow the instructions and the flooring buckled quite badly when it couldn't freely move and expanded.
 
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Old 08-24-18, 06:44 PM
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The success is in the prep work. Particle board should be removed, and appropriate subfloor put in and your engineered flooring should be nailed down. Short cuts will lead to failure down the road.

Now first question - is it particle board or OSB? One looks like fine wood dust glued together, the other looks like small strips of wood pressed and glued together.
 
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Old 08-24-18, 07:20 PM
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To add to Z's post:
OSB - good, proceed with your plan (assuming all is kosher to instructions)
Particle board - bad, remove it
 
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Old 08-25-18, 06:00 AM
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But if it's OSB then no need for additional plywood!
 
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