Toilet Flange Below Level Floor

To get the necessary clearance from the floor you can add a toilet flange extender which is quick and easy to install.

Toilet flange below level floor.

The optimum toilet flange height is approximately inch above the floor to achieve the best seal and overall fit. This can be difficult as you probably haven t laid your floor at the moment. A toilet drain flange can sit above or below the finished floor level. Most extenders come with long bolts which may be necessary if the flange is below the floor level.

The perfect height for the toilet flange is to be the same level as the finished floor. In a typical toilet installation the floor flange that sits inside the drain opening below the toilet should be positioned so that its bottom surface rests flush against the finished floor or no more than 1 4 inch above or below the floor. This ensures that the flange makes a watertight seal against the wax ring that fits between the drain opening and drain outlet horn on the underside of the toilet. If it s a little too low then this probably won t be an issue.

When the toilet was removed the toilet wax ring was still in its original shape. Give some thought to the height of the finished floor and you should be able to work out how high it needs to be. I believe products in this category are designed to replace the use of wax rings only although fernco advertises that it can handle toilet flanges that are up to 3 4 lower than the floor surface. As a result the flange is sits below the floor and is screwed into the subfloor.

A sign that the wax ring was not sealing the toilet from sewer gases or preventing water escaping from under the base of the toilet. If your current flange is broke then you ll also need a new one. Here you can see the results of a toilet having been installed on a toilet flange that is below the floor level. Large bolts thread up through.

Toilet flange extenders are constructed with either soft or hard pvc providing solid pathway from the bowl horn to the toilet flange on the floor. The installation process is the same for a tile floor a hardwood or carpeted bathroom floor.