The Common Room is one of the places inmates may go during Free Time to reduce their boredom levels. It is not yet proven if an empty common room will decrease their bordom levels upon entering but it has been confirmed that will drop once they interact with items in the common room such as TVs, Pool Tables and Bookshelves.
To maximize efficiency it can be best to put the common room in front of the cafeteria. Label free time to happen after meals. This way if a prisoner is not finished eating they can complete the meal during free time (less risk of riots if prisoners are well fed); and everyone else can leave directly into the entertainment area (to maximize prisoner needs fulfilment without wasting time walking long distance after the meal)
Alchoholics Group Therapy meetings are held in the common room, so adequate seating is required for the course to run effectively.