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realdealtexas
Mar 8, 2009, 10:56 AM
I bought a new toilet that requires a 12" rough in. The distance from the tile (not the dry wall) is only 10.5-10.75 inches. The tile is about 1" thick. Can this toilet be installed or do I need to purchase a toilet with a shorter rough in requirement?

mygirlsdad77
Mar 8, 2009, 11:13 AM
You will need to buy a 10 inch rough toilet. Take the 12 toilet back, and purchase a 10. Promise, this is the way to go at this point. If anyone tells you that the twelve will work with no problems, they are pulling your leg.

ma0641
Jul 4, 2010, 04:12 PM
I had a similar situation when they measured the rough in from the wrong side of the wall layout line. We cut the wall behind the toilet and put in an arched setback 3 1/2 inches bach. It's amazing how many people look at it and say, Wow, that's really neat to have the toilet in a small niche.

Milo Dolezal
Jul 4, 2010, 06:48 PM
My statement will contradict MGD 77's advice - but...

You are not telling us if you are on slab or raised foundations. I assume you are on slab...

... depending on the tank and LID of your 12" rough-in toilet ( lid cannot overlap tank in the back ) - you should be able to install it on 10 3/4" rough in. But not ALL toilets are designed that way and not all toilets will fit.

Here is a 2nd scenario: you won't have such a good selection of toilets in 10" rough in. If you REALLY - REALLY - REALLY want this 12" toilet, you could re-drill the two slots in your 4" closet ring and move them forward about 1/2". That should give you 11 1/4" rough-in which should be enough to set 12" rough-in toilet. See the drawing... However, this installation will NOT work on 3" closet ring...

We have done this about dozen of times with success...


There is also off-set closet ring nobody mentioned... but this approach requires some floor cutting.

However, you cannot go wrong with MGD 77 advise...