: How high should the tile come to the toliet flange ?
The toilet wax ring and horn make a pressure fit at the floor flange, which is firmly bolted or screwed to the sub floor. The tile thickness creates the distance higher than the flange that needs to be corrected for, by the flange connection bolts that float within the floor flange, but rise to penetrate the toilet hold down holes at the bowl. These holes will be at the top of the tile level. In the event your tile is three quarters of an inch or less, then the tile should come to the same elevation as the toilet flange. In the event you have 3/4 inch or thicker floor tiles and they will rest upon a 1/2 or 3/4 inch cement base, then the flange will need to be elevated to compensate for the length of the toilet hold down bolts. At any rate, the height of the tile in relation to the flange is dependant upon the ability of the toilet base to sit firmly upon the tile without rocking, and then to be held firmly down by the bolts passing through the base, and connecting to the flange. Don't let the flange extend higher than the floor tile, though, or the toilet will forever rock at the point where the wax ring seals the toilet bowl to the flange. The flange a little (1/4 to 3/4 inch)lower than the finish floor tile level is a good rule of thumb.