In general, the toilet rough-in street is 12″ indigenous the center of the toilet flange to the back wall for a typical toilet. Over there should also be a minimum of 15″ native the centerline the the toilet to any wall surface or object on either side of the toilet. Finally, there need to be a 21″ minimum clearance native the prior of the toilet come any wall surface or object.

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These limitations come indigenous the worldwide Plumbing password (IPC). Not all states follow the IPC, though.

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International plumbing Code

According come the International code Council, 35 says follow the global Plumbing Code. If you live in one of the adhering to states that does not follow the IPC, please check with your neighborhood state password for the compelled minimum clearances:

Alaska—California—Hawaii—Idaho—Kentucky—Louisiana—Main—Massachussets—Minnesota—Montana—New Jersey—North Dakota—Oregon—South Dakota—Wisconsin


The IPC also states the there should be a minimum that 21″ in former of the toilet to any wall, partition, vanity, or various other obstruction.

To figure this out once roughing in your flange, measure the distance from the center of the hole on the bottom that the toilet to the front edge of the toilet.

Then, add 21″ to this number. Stop say you gain 30″. Now, you should make certain the center of your toilet flange is at least 30″ away from noþeles that will certainly be in prior of the toilet.

Note that is not forced to have a 21″ minimum clearance when the door is open, only once it is shut. Through that gift said, make sure you have sufficient room to open the door there is no it hitting the toilet.

Toilet to Fixture Clearance

The IPC likewise states that there must be 30″ minimum from the center of the toilet to the center of one more toilet, urinal, shower, or sink.

Toilet Compartment Minimum Size

The toilet compartment is the area the restroom is in. Think of it together a stall. The minimum sizes based in the IPC are:

30″ vast by 60″ deep for floor an installed toilets30″ large by 56″ deep because that wall placed toilets

Waste Line

When installing your waste heat for her toilet, psychic to provide it sufficient slope to stop clogs and also backups. Usage the drainpipe pipe slope calculator for an ext details.

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For an ext information on installation or instead of a toilet, see Lowe’s toilet environment guide.