I guess the only case we can examine is The Doctor. Whenever The Doctor uses a transporter, what traveling: the lights or the mobile emitter?
There have been many cases which The Doctor has become solid so other solid objects can no longer pass through them. If the object we are seeing being beamed is the mobile emitter, then is it necessary for them to be on a separate pad? I imagine the person accompanying The Doctor could just hold the emitter instead.
There was an entire TNG episode (Season 6, Episode 12) whose plot centered around this:
spoiler
Moriarty was reactivated by mistake, and took the ship hostage, demanding to be able to leave the holodeck.
Geordi and Data spent half the episode experimenting with beaming (inanimate) holographic objects off the holodeck, to no avail. With that said:
spoiler
Their transporter turned out to be a holographic fake (and so was Geordi), so who knows if the results were valid.