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Will this work?

1K views 4 replies 3 participants last post by  joecaption 
#1 ·
I want to install hardwood floors, but my subfloor isn't up to snuff.
I was thinking about pouring some SLC, then glue and screw down some 1/2 inch ply on top of the leveled subfloor....

Will 1/2 inch ply be enough for the 3/4 prefinished hardwood planks to nail into? Can I go smaller? Do I even need to put another layer of plywood over the SLC?
 
#3 ·
Sorry, The subfloor is 3/4 inch plywood. on one side of the house it's on 2x10's on the other it's supported by 2x8's.. I know... don't ask.
The floors are 40 years old and not level, and where the main beam of the house is there's an 1 1/2 inch drop because of the transition from 2x10 -> 2x8.

I'm just looking for a simple but respectable way to level out the floors.
 
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