I’d install it after all the flooring is complete so you know exactly how much you need to extend. You could use one of these extension kits and a wax ring once you know how much of a gap you need to fill.

Should toilet flange be attached to subfloor or finished floor?

The toilet flange needs to be on top of the finished floor. Meaning the bottom edge of the flange needs to be on the same plane as the toilet. So if your toilet sits on the tile, the flange needs to be on top of the tile too. The spacing of the toilet exit “horn” and sealing surface is designed for this height.

Should toilet flange sit on top of finished floor?





With the toilet removed, you can see the toilet flange and measure its height above the floor. The optimum flange height to aim for is 1/4 inch above the finished floor. This typically allows for almost any type of wax ring to be used and still ensure a good seal.

Can toilet flange be flush with floor?

For those that don’t already know, the proper toilet flange height is when it’s flush with the top of the finished floor. The optimum height is about ¼ inch. It’s easier to get your flange flush with the floor if you lay your flooring before you install the flange.

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

1/4 inch

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.

How do you install a toilet flange on a subfloor?






Quote from Youtube video: The tools needed for this repair are an electric drill or screwdriver used to screw the flange into the subflooring. And a wire brush used to clean the old flange of any rust. To do this repair.

How do you install a toilet flange extender?

Quote from the video:
Quote from Youtube video: So place a nice generous quarter inch bead of caulk on top of the closet flange. And waste pipe. Again be generous with this because it's going to create a seal between the old closet flange.

How do you raise the toilet flange after tiling the floor?

Quote from the video:
Quote from Youtube video: Okay you put this on top and then you'll screw through the new holes. To hold this new spacer on top. Now what this will do is just bring this a little bit higher so when you set your toilet.

How do I fill the gap between my toilet and floor?

Apply a thin, even bead of caulk around the base of the toilet to cover the gap along the floor and hide the shims. If necessary, smooth the caulk with your finger, wiping your finger clean frequently with a paper towel or a rag.

Do you install a toilet before or after flooring?



The bathroom fitters are unanimous—if you’re looking for a high quality finish, with a better seal against water damage, then always tile the floor first.

When should you use a toilet flange extender?

Quote from the video:
Quote from Youtube video: Any toilet flange should always be installed on top of the finished floor. We have an example here which shows the finished floor is a wood flooring.

Can a toilet flange be too high?

When your toilet flange is too high, your toilet may leak water and rock back and forth when used. Both the leaking and the rocking can warp or break the floor. A leaking flange can also rot the subfloor and lead to the accumulation of mildew and mold.

Does toilet flange go inside pipe?



This toilet flange is designed to glue on the inside of the pipe or expand inside the pipe. Leave the old toilet flange right in place and glue on the new one at the right elevation for the floor, if it’s plastic. The flange should be sitting with the bottom edge flush with the top of the floor.

What happens if the toilet flange is lower than the floor?

Quote from the video:
Quote from Youtube video: But the wax ring will take care of that no problem concrete bolts gaskets in between double gaskets down the flange.

How do you cut a subfloor around a toilet flange?

Quote from the video:
Quote from Youtube video: Cut out the bad subflooring. Using a power saw set to the sub phalanx thickness. Usually a 3/4 of an inch. Be careful not to cut the floor joists.

Where should a toilet flange be placed?

The Distance To Set The Toilet Flange From The Back Wall. You’ll want to set the center of the water closet flange 12 inches from the finished back wall. Don’t measure from the base molding! Take this measurement from the finished wall.

Does the wax ring go on the toilet or the flange?



Quote from the video:
Quote from Youtube video: Way. If the sewer flanger subflooring is damaged. They will need to be repaired accordingly if the sewer flange is in good condition then the new wax ring can be installed to install the new wax ring

Can you stack toilet flange spacers?

The four individual spacers can be stacked to any height or can be snapped in half to support an existing closet flange.