About 37 Lodge rooms with King beds double as the barrier-free (handicap-accessible) rooms and have a large shower with no tub.
To my knowledge none of the deluxe rooms are barrier-free, I may be wrong. There are barrier-free villas that will offer addition space for larger groups.
You may get better results over on the Disabilities Forum just click the link below:
I also found these two phone #'s that may be of assistance to you.
There are 2 numbers listed in the WDW Guidebook for Guests with Disabilities:
General Information: Voice: 407-824-4321 TTY: 407-827-5141