When installing a toilet or replacing an old toilet you have to make several measurements including the most important one.
Toilet drain dimensions from wall.
The back wall distance remains the same 12 1 2 inches from the center of the toilet flange to the framing but the minimum space to the side increases to 18 inches from the toilet centerline to.
Measured from center of the toilet to either side minimum clearance is 15 inches to any wall or other fixture.
Offset hole from the back wall by 12 1 2 inches discharge hole vertical.
Why is it helpful to know water closets have different rough in sizes if you re simply replacing your toilet and notice the center of your flange is only 10 inches from the wall there s no need to go through the hassle of moving the flange.
18 inches recommended if bathroom layout allows.
Discharge hole from back wall.
The bathroom drain is very difficult to move so your toilet has to fit on top of this drain with plenty of space behind it for the toilet base and tank.
For those who are unfamiliar with what this is a toilet s rough in distance consists of four different dimensions.
The standard placement for a toilet drain in the bathroom is 12 inches from the wall behind the toilet.
The distance between the toilet and the wall.
The proper distance from the back wall to the toilet flange.
However it s useful to know that toilet s also come in.
The correct amount of space on both the right and left side of the toilet.
Distance is zero fixture side to side buffer.
Drain located at floor height.