What to use under floor tile on 2nd floor
#4
  
So I'm tiling the floor in the upstairs bathroom

What was under the current flooring is just the 2x6s that they covered the whole second floor with. 

It's relatively flat but far from perfect

So backer board I assume?  Bob Villa site says to cover the 2x6s with a thin layer of thin set then backer board then thin set and tile

Can I use Hardie backer? Or just concrete backer?

Any other suggestions/options.?

I'm replacing cabinets too. Should I do the whole floor in backer then install cabinets and then tile to the cabinets?

Thanks
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#5
  Re: What to use under floor tile on 2nd floor by Wipedout (So I'm tiling the fl...)
My home was built three years ago.  The builder used 3/4" tongue and groove OSB subfloor as a base and then concrete backer board over top of that.  They mud and taped all the joints and screw holes before laying the tile.
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#6
  Re: What to use under floor tile on 2nd floor by Wipedout (So I'm tiling the fl...)
Plus 1 on the OSB then the concrete backer board
Make it water tight
....the measure of a man is not what he does when others are around, it is what he does when no one is around.....
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