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Old 10-14-2007, 11:17 AM   #1
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Toilet flange height


Im moving along in my washroom and wanted to install the toilet temperarly for the next couple weeks till i get to my tiles. Problem is im not sure which way i should go. Im figuring the thinset/ditra/thinset/tile combo will be about 3/4" to 7/8" thick, is this correct? Here are the options that I've came up with.

1. install the flange flush with the plywood floor now and just use a flange extender later. How good are these?

2. Use my leftover 3/4 plywood to shim the flange, make it secure and use that now. When i tile my flange should be either flush or a little lower the the finished tile floor (about 1/8 to 2/8 )

Not sure if there are other options, but im open to suggestion.

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Old 10-14-2007, 11:53 AM   #2
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Toilet flange height


For a wax ring to seal properly, the toilet flange should be bolted to the top of the finished floor level with only the thickness of the flange above finished floor level (and the toilet bolted to the flange).
If it is over a basement or crawlspace, you may be able to adjust the flange level after tiling. If it's over a first floor ceiling or on a slab, you need to deal with the final height as closely as you can now.
You also can use flange extrenders later.
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Old 10-14-2007, 12:20 PM   #3
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Toilet flange height


Thanks for the quick reply!

So then i should shim it right now using my 3/4 plywood. When i tile, the flange might be just bellow the tile by 1/8" then i can use a thicker wax ring. Does that sound good?
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Old 10-14-2007, 08:15 PM   #4
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Toilet flange height


I just had the same issue. I figured 3/4" higher for the finished floor level. I used a 3/4" 2x2 piece of plywood (which is thinner than 3/4" btw) as a temporary base, and I also used a screw-in closet flange which I can adjust up or down by a bit if I need to (it has threads and a big rubber gasket - HD carries it) once I get the finished floor done.
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Old 10-14-2007, 08:36 PM   #5
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Toilet flange height


well i went ahead and did it, instead of 3/4 i went 1/2 just in case, i rather use an extention kit then have it a little too high. Either way when your playing with 1/8 to 1/4 i doubt youll have problems if you use the proper wax.
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