How do you fit a 30"wx37"hx60"l shower unit thru a 28" door?

Magic wand?

Seriously though... do yo have a link to a picture of it... I have an idea and if I'm right I could explain it... its a corner unit with glass on 2 sides right? Partially disassembled?

And most shower and tub units are placed into new construction prior to walls being put into place. So if this is existing, it may have had the walls built around it.

I have had to take doors out, and even part of walls in the past to do some remodeling that required objects too large for turns in hall ways or doors