The toilets were installed too close to the walls.
Toilet tank too close to wall tile.
You must have a 15 rough.
The only way a floor mount tank type toilet would fit tight to the wall would be if the plumber knew exactly how far the opening had to be from the finished wall and also knew how thick the finished wall would be from the framing.
The distance from the back wall to the flange is based on the toilet design while the clearances to side and front walls are set by the local building code.
The toilet tanks are right against the wall and there hasn t been a problem.
As a result when the toilet was seated by the plumbing contractors it turned out to be too close to one of the side walls.
Should be enough wiggle room in the bolt holes to get it back on there.
There s a way to move your toilet if it s too close to the wall.
Add a rectangle of 3 4 plywood against the back of opposite rooms drywall.
Reframe it as if it were a low doorway.
The framing could have been moved or boxed out.
Create an alcove behind the commode by removing the drywall and studs to a height and width that will clear the tank.
The closet you can get would be a 14 rough toilet.
The space between your tank and wall is not your contractor s fault it s too bad they just don t communicate these issues with homeowners.
It was uncomfortably tight.
Some brands have a tank that would be perhaps 2 thicker.
I would never attempt to install the pipe that way and hope it would all come out properly in the end because.
You really don t need that wall behind the toilet do you.
Beat on the wall to get the room to get it to fit or loosen the bolts in the bottom of the tank and slide it to one side.
Sometimes building contractors make mistakes.
They built the walls in a friend s bathroom too close to the waste stack pipe in the floor.
And yes it actually does have to do with the toilet you chose.
I would install a cabinet on the wall behind the toilet then.