Find the main drain line photo 1.
Toilet rough in basement floor.
The distance of the toilet flange from the back wall depends on whether or not the construction is new or if a finished wall already exists.
The rough in is a measurement that you need to ensure that your toilet fits snugly against the wall.
You may be able to use a different toilet rough in to dodge the framing.
The toilet flange distance from wall also known as a closet flange is the pipe fitting which mounts a toilet to the floor connecting the toilet drain to the drain pipe.
Connect the basement bathroom plumbing to the existing drain and vent lines in the floor and ceiling to complete the rough in plumbing.
Locate the main drain.
Or suppose you re roughing in a toilet and there s a floor joist in your way.
Most toilet manufacturers produce units that require at least 10 12 or 14 inches between the wall and flange.
If your 8 inch rough in clearance refers to the distance between the rear wall and the closet flange you face an installation challenge.
A crude drawing may be helpful to visualize where the you want the new sink and toilet in relation to the existing pipe.
Choose a toilet with a smaller measurement than your rough in and won t fit against the wall.
Identify where you want the sink and the toilet to be placed in the basement.