3.5" ID toilet drain.

[FATBACK]

The inside diameter of my toilet drain measures 3.5" I can't seem to find a 3.5" OD toilet flange. Am I messing something here? Any help is appreciated.

 

[Geofd]

Pipe sizes for a toilet would be 3"" or 4", measuring the outside diameter will give you a measure just slightly bigger

 

[JG plumbing]

Picture of what your measuring.

 

[Jeff Handy]

Are you installing your new flange inside or outside the existing pipe?

 

[Jeff Handy]

You said ID is 3.5, then you mentioned 3.5 OD.

Get your story straight, you are screwing this up already.

Just trying to get you to focus!