Quote:
Originally Posted by Tidybuoy
The additional room that I am connecting to had hardwood flooring that is nailed down to planks that are on top of the joists.
When I'm done, both rooms need to be a perfectly level plane as one seamless floor so I will be adding 1/2" subfloor over the planks.
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(^for clarification)
Glue 'n screw is what I've heard is best in any wood situation.
There are very different grades of "4x8 plywood" ...
Get one rated for flooring. (Not OSB of course)
Never a bounce afterwards.
Plus more equal load distribution onto the foundation.