Toilet Flange Height To Floor. With this in mind, the best toilet flange should have a good seal so as to prevent any smell from the sewer lines from entering your house. My plastic flange is almost a 1/2 thick.450 to be exact so should someone told me the top of the flange should be level with the floor surface that doesn't seem right. When your toilet flange is unlevel or not set to the right height, the toilet may wobble or even leak at the base.
Ideally, you want to seat the toilet on the wax gasket, and attach the mounting.
The lower the flange, the thicker your wax ring or rings will need to be. Give some thought to the height of the finished floor and you should be able to work out how high it needs to be. Are there any toilets out there that accommodate for a flange that is. Or suppose you're roughing in a toilet and there's a floor joist in your way. Kits are available to make sure the toilet flange is level with the new floor. Toilet flange raised above new tile floor. Every flange is designed to anchor the toilet to the floor & seal to the sanitary piping, however, toilet flanges were never designed to seal to. Is it difficult to lower the toilet flange (probably about 1/2) when i install or, is there some tolerance built into the bottom of the toilet to allow for flange heights that my be a little higher?
