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Unread 03-12-2021, 10:02 PM   #115
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Join Date: Jul 2001
Location: Boerne, Texas
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Depends upon what you consider a complication, Karen.

Best thing at this point would be to determine exactly what you have on top of that board subfloor. Without knowing that, our best advice might be to remove everything above that board subfloor, install a layer of minimum nominal half-inch plywood and see if the new subfloor is sufficiently flat for your new tile installation.

The tile industry standards call for those boards to be at least nominal 1x6 and have T&G edges. I expect the boards to be at least thick enough, but they're clearly not T&G style. If they are in good condition and well fastened, I'd not hesitate to consider them a legitimate first layer. See my warranty information below.

But until you remove some of your existing flooring, we're just guessing.

My opinion; worth price charged.

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