Can you change a toilet rough in?
Similarly, how do you rough in a new toilet?
Cut a hole in the subfloor just large enough for the bottom part of the toilet flange to sit. The flange rim will be fastened to the finished floor later. The center of the toilet flange should be 12" from the finished wall (add a 1/2" for drywall if measuring from the framing).
Similarly, can you replace a 14 inch rough in toilet with a 12 inch rough in toilet?
Any 12" toilet will work for a 14" rough. If you want to pull the bowl back 2", then there is only one method.
Different Rough-in Measurements A 10-inch rough-in is the usual measurement installed in older homes. However, the 12-inch measurement is the standard for modern toilet plumbing. The 10-inch rough-in measurements are still sometimes found in homes, and a lesser number of toilets are normally available for them.