First, you can pack grout into the gap between the floor and the flange. There’s a recess under the bowl around 3/8” to crush the wax or use the newer Urethane/Rubber seals. How Do You Utilize It? I have a concrete floor that I plan to put tile on, and the plumber on rough-in left the drain pipe about 3 inches out of the floor. & should still allow rim to be above the thickness of the tile & thinset. To ensure that your toilet is installed correctly and working well for years. The succeeding discussion will walk you through on what to do when confronted with such a problem. With the toilet removed, you can see the toilet flange and measure its height above the floor. Be careful to tighten the bolts until snug and avoid over-tightening them to prevent cracking the toilet. As a result, the flange is sits below the floor and is screwed into the subfloor. & should still allow rim to be above the thickness of the tile & thinset. If the previous flange is too low, purchase one that is designed to sit on the finished floor and provide the optimum toilet flange height. Make any needed adjustments and purchase the best new flange. Before you bolt the toilet down, confirm that the base is stable and level by carefully … If the top of flange is 1 1/8" above sub-floor than all you need to do is install one layer of 1/2" wonderboard. If your bathroom floor is concrete, make sure you use concrete screws. How to correct a toilet flange too high. Normally grout would go underneath the bowl rim. Your flange should now be lower than where it was, and your toilet should sit level and not leak or rock. I'm replacing my toilet during a small bathroom remodel (hate pedestal sinks). It’s ok if your flange sits a little high or a little low. Depending on how high your flange needs to reach, there are different styles of flanges available. Carefully measuring will ensure that you know which flange is right for your toilet. Without this firm seal odors, and leaks may occur that are both unpleasant and unhygienic. If your toilet flange is too high, do not use the toilet until you’ve corrected the problem. When installing a new toilet flange, there are a few things to keep in mind to make sure the process runs as smoothly as possible. Gently try to rock the toilet from both sides and front and back. – maple_shaft Oct 29 '12 at 15:17 NVM my last comment, it wouldn't matter if you moved it and brought it down some because you should never bend down then back up in a drain pipe. Take great care in cutting the PVC pipe, as it is difficult to fix if you remove far too much. So the flange height is 1/2" above the floor level. Secure these closet bolts snugly as they will help prevent the toilet from moving or any of the plumbing from shifting. The thickness of the flange top is 1/2" . Your email address will not be published. A flange that's too high won't allow the toilet to sit firmly on the floor. Experts will tell you that the perfect height for a toilet flange is to be level with the floor. It has to sit evenly on top of the finished floor. But first and foremost you will have to measure how high the toilet flange is from the floor. Booted wax rings should not be used with toilet flanges that are high enough to prevent the toilet from sitting level on the floor. The correct location of the flange is on TOP of the finished floor. some flange are 9" deep for gluing to a pipe about 7 1/2" below the floor. With the toilet removed, you can see the toilet flange and measure its height above the floor. When you install the toilet wax ring on the hardwood floor, you may find that the flange raises the toilet a small amount above the floor. I’m for that if the pipe diameter is not reduced. If the height of your flange needs to be adjusted, remove the bolts and flange so that repairs can be made and the flange height adjusted. It all depends on what works best and practical for you. 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