I took out an older toilet that had 15" between the base and the wall and now I can't find anything that short to replace it with. Any suggestions (14" rough)?
Toilet size is determined by measuring from the finished wall to the center of the drain. It is also the same distance from the finished wall to the flange bolts on the toilet. Go to Terry's Report on Low Flow Toilets and in the Toto section, you can see the specs for all models.