wrote
Thanks for the info, but I think you're talking about a
"semi-frameless" shower door. Mine will have no frame anywhere, and
just three or four hinges connecting it to the wall. Do a Google Image
Search for "frameless shower door." Here's an example:
http://www.showerdoorcanada.com/photos/12.html

Do these hinges also just require a stud?

Hmmmmm, never seen one like that. Exactly how does it keep water from going
on the floor, or doesn't it? There must be a gap at the pivot area,
otherwise the glass would rub, also no latch strike channel. Is there just
a couple of door stops on the latch side? No _H_ channel what-so-ever.
Maybe I'm missing the obvious?