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Unread 09-18-2008, 09:53 AM   #6
Mike2
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Join Date: Nov 2003
Location: LaConner, Washington
Posts: 13,694
Yep -- 3/4" ply + Ditra + tile (3/4" + 1/8" + 3/8") gets you to 1-1/2" total. Add in another 1/8" allowance for thin-set mortar and you're still under the 1-3/4" maximum.

The key is loosing that 1/2" sub-floor, Bill.

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