A free-standing plastic livestock confinement system includes hollow plastic panels assembled together to provide interconnected walls that create confinement areas. One of the walls provides a door opening and a door that can be closed across the opening. The door is a hollow plastic panel with an opening for an animal to place its head through for access to food. The door is molded with a bucket holder and the opening in the door over the bucket holder. The bucket holder is recessed such that a bucket received in the bucket holder will extend partially into the confinement area.