||06-05-2008 04:12 PM
Originally Posted by thekctermite
Although it isn't adopted in every jusrisdiction nationwide, the International Residential Code requires a minimum 15" from center of the water closet to the finished wall. Been that way since 2000.
You're referring to minimum side distance from center of bowl to finished wall.
My state requires 18".
I beleive the opening question was in relation to rough in size, the distance from rear finish wall to center of drain.
3 sizes - 10", 12" & 14" - 12" is standard, the other two are less often seen.