Toilet Flange Height Above Finished Floor. Flange is flush with the finished floor. From the center of the water closet flange measure 6 to the left then come up 7 above the finished floor.
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. If the top of flange is 1 18 above sub-floor than all you need to do is install one layer of 12 wonderboard. The optimum toilet flange height is approximately ΒΌ inch above the floor to achieve the best seal and overall fit.
The ideal height for the flange is sitting on top of the finished floor.
Optimum flange height to aim for is 14 inch above the finished floor. From the center of the water closet flange measure 6 to the left then come up 7 above the finished floor. That should allow the use on any good seal wax or no-wax. That typically puts the top of of the flange above the finished floor by about 14 to 38 inches.
