Springie Subfloor

Old 05-04-04, 10:24 PM
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Question Springie Subfloor

I am in the process of installing a 3/4" hardwood tongue and groove flooring in a second floor master bedroom. I have stripped out the carpet, padding, cleaned out nails and staples. Problem is some areas of the subfloor have "springie" edges where the plywood does not rest on a floor joist and both edges of the seam will "spring" down when walked on.
My question is: should I install another layer of plywood subflooring on top of the existing subfloor, or will the 3/4" strip flooring provide enough support to stop the "springing" between the plywood panels not supported by the joists?
Old 05-05-04, 07:19 AM
awesomedell's Avatar
Join Date: Mar 2003
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Hello & welcome aboard!

I think if I was doing this, I would add a layer of 1/2" plywood before installing the hardwood at the least. The quality of your finished product will directly reflect the subfloor and what was acceptable for carpet may not be suitable for installing hardwood over. Take the time & effort to do the prep work & you be much happier with the end result.

Here's a couple of link that you may find useful.



Hope that helps & good luck.

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