The standard rough in is 12 inches though you may encounter 10 inch and 14 inch rough ins in older homes.
Toilet less than 12 inches wall.
This is to be expected as round bowl toilets are generally shorter than the elongated ones.
Elongated toilet bowls measure up to 31 inches from the wall behind the toilet to the front of the bowl.
We have11 inches only.
Some builders like to leave an extra 1 2 inch from the back wall to ensure a comfortable fit.
And that could easily take up a good 3 to 4 inches of valuable length space.
The standard distance is 12 inches but most toilet designs can accommodate a distance of 11 to 13 inches.
That will most likely be a 10 or 14 inch rough in model.
This prompted a question about choosing a toilet to install from reader collette.
Its 3 inch flush valve is chemically resistant and blows water into the bowl at high pressure.
Round toilet bowls extend up to 28 inches from the wall.
Buying a toilet with a smaller round bowl will fit into a compact space better than an elongated bowl.
Measure from the wall behind the toilet to the center of one of the closet bolts that hold the toilet down.
The more room the better but don t make it any smaller than the minimum.
It appears standard toilets are 12 inches from the opening to the wall.
Any more or less than that and you ll need a toilet designed specifically for this distance.
Watersense labeled toilets use at least 20 less water than standard 1 6 gallon toilets.
Confirm the rough in dimension with the toilet installation instructions or manufacturer.
We posted a video demonstrating basic toilet repairs on the apron blog.
Round bowls require less space making them a good toilet for small bathrooms.
The main reason is the bowl will have a platform to support the tank.
Both round front and 10 inch rough in will take much less space than other models with elongated front and 12 inch rough in.
If your rough in is less than 11 inch like a 10 7 8 or a 10 3 4 inch rough in you ll probably not be able to install the 12 inch toilets you buy.
The minimum distance in front of the toilet when facing a wall or fixture is 21 inches.
Elongated bowls provide greater comfort while seated.
It is almost impossible for a two piece and elongated toilet to have an overall length of less than 27 inches.
While updating your bathroom to a modern look this round front toilet is an ideal choice.
Ideally measure directly from the wall.
The most standard rough in dimension is 12 inches but some toilets call for a 10 inch or 14 inch rough in.