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Unread 11-15-2008, 12:09 PM   #1
Gerry in Belle River
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Stone tiling issue

I am in the middle of a reno that includes installing a stone entry next to a new hardwood floor. When I was planning this out I was told by the retailer that the stone was 1/2" thick which matched the thickness of the engineered hardwood. When I put down the new subfloor I ended up with the 3/4" subfloor underneath the area for the stone being 1" lower than the hardwood floor expecting to put 1/4" durarock underneath the 1/2" stone leaving 1/4" for the thinset hoping to get the two finished floor at the same level.

I received the stone the other day and it is 3/4" thick not 1/2" as I was told.

My question is can I eliminate the 1/4" durarock and apply the stone to directly to the 3/4" subfloor to end up with everything at the same level?

For information purposes the area for the stone is only 4' x 4' . Its is subfloored with 3/4" CDX ply. Before I subfloored I beefed up the foor joists and added some 2 x 6 croosmemebers to make the structure "bomb proof".

Also open to opinions as to best way to transition between stone and hardwood. Was going to use a Schulter strip but don't know if I can find one for 3/4" stone.
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Unread 11-15-2008, 01:01 PM   #2
Rd Tile
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Hate to be the one to bust your bubble, but, the CDX is garbage and you'll need at least another layer of 1/2" or better ply over that, then a CBU or membrane before the stone.

Cross members?, what size are the joists and their unsupported span?, their spacing would help also.

That's some pretty thick and heavy stone.
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Unread 11-15-2008, 01:04 PM   #3
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Hi Gerry, Welcome aboard.

It won't hurt to have the stone a bit higher than the wood. You can use reducer strips against the tile edge made from the same wood.
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Unread 11-15-2008, 01:26 PM   #4
Gerry in Belle River
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Tile Man - The area is as I said small 4' x 4' and as it happens the main beam for the house which is 8" x 12" runs under this area about 6" off centre. The floor joists are true 2 X 8's sixteen inch on centre with max unsupported lenght of 10 feet.

Just had another look at the plywood, it's AC not CDX. Got a couple projects on the go and got this confused,sorry bout that.

By the way the house is about 80 yrs old and all the structural lumber is true to measure. Well thats good, the 2 x 4 walls make heating costs somewhat high.
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Unread 11-15-2008, 03:49 PM   #5
Rd Tile
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I still would add 1/2" ply then Ditra.
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