Our single rooms seat up at 10-13. We can do double rooms that combine together for up to about 25 people. For more than that we do rent our main stage area for groups up to about 50-60.
The website says 10-12, and that they can combine rooms to accommodate more, if necessary.
I'd say 6-8. You only have an hour to sing when you get a private room though so my suggestion is go through songs and decide what you want to sing before you get there. Also keep in mind the more people you have in the room the less opportunity you will have to sing in an hour.
I would say, comfortably, about 6. But you can get more in there.
Lots
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