New (additional)Subfloor?

Old 02-21-07, 01:15 PM
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Join Date: Jun 2006
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New (additional)Subfloor?

Have a friend who is replacing a 55 year old T&G 2 1/4" oak floor. Some installers say they need to install at least a 3/8" plywood subfloor on top of the existing 1x6 x 3/4" shiplapped subfloor that is there. The subfloor is in fine condition. They did not ask why it needed to be installed. The floor covers about 500 sq ft. in the living and dining rooms.
Any thoughts?
Old 02-26-07, 08:52 AM
Join Date: Feb 2007
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Reinforce 1 x 6 subfloor with plywood.

I want to correct some squeaking in my 75 year old house and add plywood subfloor on top of 1 x 6 t&g subfloor. Does anybody know if 3/8 is adequate? What fasteners?

Or do I just need to re-nail the 1 x 6?

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