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Ideas on raising floor 2" in bathroom

Old 10-19-2010, 07:08 AM
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Default Ideas on raising floor 2" in bathroom

I'm installing a rear discharge toilet in my basement bathroom. The discharge to the sewer pipe is 6" off the floor. The discharge on the toilet is 4" off the floor. So I need to raise the floor almost exactly 2 inches. This 2" has to include the ceramic tile/grout. Stacking (2) 3/4" pieces of plywood and (1) 1/4" piece on top of each other?

Thanks.
Old 10-19-2010, 07:24 AM
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Doesn't CT building code require more pitch?
Old 10-19-2010, 07:34 AM
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I added a 18" extension plus 90 degree elbow to the sewer drain in the foundation (the toilet will set perpendicular to the sewer drain) . The extension and elbow are at the proper pitch. Plus the toilet is pressurized for added oomph.
Old 10-19-2010, 07:41 AM
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What about just raising the "throne" area?
Old 10-19-2010, 07:45 AM
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I was thinking that but the bathroom will be very small. If I raised just that area, there would be a step right at the doorway.
Old 10-19-2010, 07:50 AM
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What if you raised just the throne itself and not the floor around it. The result would be much like a handicapped throne. We installed two handicap toilets in our office and they are about 2" taller than standard and much more comfortable. Just a thought.
Old 10-19-2010, 07:50 AM
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Can you form and pour a 2" concrete pad for the toilet?
Old 10-19-2010, 07:52 AM
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Dont they make something you can mix and poor to raise the floor and it will not rot like wood and would be perfect for laying tiles.
Old 10-19-2010, 08:00 AM
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I have a 2 and a 4 year old and I think they might have a tough time is the toilet was another 2 inches up. I'll look into it tonight though... That might be an idea. Thanks!
Old 10-19-2010, 08:46 AM
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Is the existing floor cement? Room dimensions (WxLxH)?

Somewhere, there's going to be an awkward 2" step up.
Old 10-19-2010, 09:02 AM
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Originally Posted by paulyjsob View Post
I'm installing a rear discharge toilet in my basement bathroom. The discharge to the sewer pipe is 6" off the floor. The discharge on the toilet is 4" off the floor. So I need to raise the floor almost exactly 2 inches. This 2" has to include the ceramic tile/grout. Stacking (2) 3/4" pieces of plywood and (1) 1/4" piece on top of each other?

Thanks.
Yes, but where will the awkward 2" lip end? Remember that 2 inches isn't a "step" it's more like a toe-stubbing-trip. But if the 2" rise terminates at carpeting, floor covering supply stores sell ramps that go under the carpet to lessen the problem.. I'm not sure if they ramp up to 2 inches though?
Old 10-19-2010, 09:09 AM
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The bathroom is 82"x44" I was thinking the 2" lip would be at the entry to the bathroom (right under the door).
Old 10-19-2010, 09:41 AM
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Originally Posted by paulyjsob View Post
I'm installing a rear discharge toilet in my basement bathroom. The discharge to the sewer pipe is 6" off the floor. The discharge on the toilet is 4" off the floor. So I need to raise the floor almost exactly 2 inches. This 2" has to include the ceramic tile/grout. Stacking (2) 3/4" pieces of plywood and (1) 1/4" piece on top of each other?

Thanks.
Instead of raising the floor/toilet, why not lower the sewer pipe discharge?
Old 10-19-2010, 09:56 AM
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Just get a 5 gal pail.
Old 10-19-2010, 10:56 AM
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Don't change the floor level at the door...a real trip and fall hazard.
Old 10-19-2010, 10:58 AM
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Yup comfort height toilets are 2" taller.

Well if the kids are 2 & 4, wouldn't they need a step to use the facilities as it is?

I'd pour the 2" slab and then use a flange extension if the flange isn't high enough.
Old 10-19-2010, 11:08 AM
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I think the slab sounds like a good idea. Thanks to all!
Old 10-19-2010, 11:45 AM
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Originally Posted by paulyjsob View Post
I think the slab sounds like a good idea. Thanks to all!
That's why I asked about the room dimensions and existing floor. Make sure to properly prep the floor, use the proper cement, don't forget to account for the the thinset and tile. I'm not an expert, but I believe there's a "primer" to go over the old cement to get good adhesion. I wonder if Ditra under the tiles would be appropriate (I've never seen the stuff used on a job, but I've been away for awhile).

If it warrants it, it would be perfect for mat electric radiant floor heating. If you do the floor heating, the first thing down is a thin insulating material. Then the "cement", electric mat, etc.
Old 10-19-2010, 12:29 PM
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DUROCK

Much less mess than pouring new slab.
Old 10-19-2010, 01:34 PM
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Originally Posted by 54bullwinkle View Post
DUROCK

Much less mess than pouring new slab.
I was wondering if you can use sheets to build it up and then maybe a self leveling thinset? Would/can you shoot a thickness of 1 1/2" to 2" of these sheets to the original floor? Maybe Tapcons? Or just glue them down as you go?

To answer an earlier question, to bond a new coat over an existing floor, one would use a product like Levelrock Floor Underlayment Primer.

The only thing I've ever used was self-leveling gypsum concrete in a multifloor building with hydronic radiant floor heat.


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