Check the height of the flangeYou can see the flange of the toilet and measure its height above the floor when the toilet is removed. The ideal flange height is 1/4 inch above the finished flooring. This typically allows for the use of almost any type of wax ring to ensure a good seal.

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Should toilet flange sit on finished floor?

On top of the finished floor, the toilet flange needs to be installed. To put it another way, the bottom of the flange must be level with the toilet. In this case, the flange needs to be on top of the tile as well. The “horn” and sealing surface spacing on the toilet’s exit are made to accommodate this height.

Can a toilet flange be too high?

Using a toilet with an excessively high flange can cause leaks and back and forth rocking of the toilet. The floor can be warped or broken by both the leaking and the rocking. Additionally, a leaking flange can cause the subfloor to rot and become infested with mildew and mold.

How far below the finished floor can a toilet flange be?

There should be no more than 1/4 inch difference between the bottom surface of a toilet floor flange and the finished floor when it is installed in a typical toilet installation.

Should the toilet flange be flush with tile?

Always place the toilet flange on top of the tile in order to ensure a proper installation. It is recommended that the flange be installed at a height of about 14 inch above the finished floor. Incorrect sealing and a wobbly, leaky toilet can result from installing the flange on the subfloor or flush with the tile.

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