I am installing a new toilet in
what used to be a closet. My question is: How far off of the back
wall, should I locate the drain ring in the floor ?
toilets will fit properly when the distance between the wall and
the center of the toilet flange is 12 inches. There are
special toilets that will fit with the above dimension at 10
inches, but these toilets can be hard to find.
What I do is set the center of the flange around 12.5" from
the finished wall, or 13" from the bottom plate of the wall
(since often the rough plumbing is done long before the drywall is
It really helps to have a little extra room, but if you leave too
much space you'll lose things behind the toilet. I find that
1/2" to 1" of extra space to be just right. You may need
some of that space when you attempt too make the toilet tank
Bruce W. Maki, Editor.