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Old 12-14-2008, 06:01 PM   #3
ddmoit
Veteran DIYer -- Schluterville Graduate
 
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Join Date: Dec 2006
Location: SE Tennessee
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Hi Jason,

It doesn't really matter how well thinset bonds to the cutback on your wood floor because you'll be screwing the cement board down. The thinset is there only to eliminate any tile-cracking voids.
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