We rented units 1A, 1B, 1C and the Beer Garden for a Bachelor Party of originally 15 people that ended up being 20 people. The units themselves are a little spread out its like getting 3 different apartments. If you want to hang out together as a big group the additional beer garden rental is a must. The patio at 1A is also a decent size but is L shaped and sits about 12 people across two tables so if your group is bigger then that the beer garden is the way to go.
Unit 1A has a bedroom with 2 twin beds, a regular couch, a fold out bed couch that can sleep 2, and a bedroom with a queen bed.
Unit 1B has 2 queen size beds and another bedroom with a twin bed.
Unit 1C has two bedrooms with twin bunk beds each bedroom sleeps 4. There is also a couch in the kitchenette.
We were definitely hitting capacity on sleeping space but it got the job done comfortably. There is an outdoor bed on the patio of 1A but it was too cold during our stay to use that. Leave that for the person that can't handle their liquor.
One more thing about the beer garden, its mostly covered but still open to the fresh air so if the weather is going to be chilly during your stay be sure to tell everyone to bring something warm it was definitely getting cold for us later in the night.