Now let’s get everyone up to speed on basic toilet rough-in issues. Normally the center of a toilet drain is installed 12 inches away from the back finished wall. This is why most toilet sizes are referred to as 12-inch toilets.
Because of installation issues, some toilet drains may be installed a little closer or further away from the back wall. If that’s the case, you can usually special order “less popular” 10- or 14-inch toilets. So, if you can’t fit a 12-inch toilet, your plumber should be able to install a 10-inch toilet to fit your space.
To deal with the gap between the toilet and the back wall, I have seen contractors install custom shelving over the toilet tank or even pad out the back wall. So, now you can tell your wife that installing a new toilet won’t be such an “off-the-wall” idea.
Master contractor and plumber Ed Del Grande is the author of the book “Ed Del Grande’s House Call” and the host of TV and Internet shows. Visit eddelgrande.com or write eadelgcs.com.