The cabin is about 12' X 24'.
It has places inside to lay out sleeping bags and a small table.
I would guess that it would sleep 12-15 people.
Here I am trying to read an engraved plaque on one of the many crosses that has been erected in memory of the several Jeeps that have broke down trying to make it to this point.
Edit: OK, you caught me. I made the Jeep part up. The crosses are really in memory of the climbers which have not made it down alive. It does make you stop and think though.