Locker rooms for the conclude the tour of Si Melby Hall. The women's locker room is located along the north hallway of the lower level. Extensive locker room and women's athletic equipment storage space is in the locker room, along with the LaVonne Peterson Team Room, a team meeting place for women's athletic teams. The room is named for LaVonne Peterson '44, a longtime health and physical education instructor and one of the leaders in establishing women's athletics at Augsburg. She coached a college women's basketball team that was one of the most dominant in the state during the 1950s and 60s.

The men's locker room is located along the south hallway of the lower level. The locker space is separated into three areas for various teams, with the football and wrestling room in the center, basketball, golf and soccer room to the right and hockey room up the stairs and along a hallway. The men's "cage", storage room for men's athletic equipment, is in the center.

Adjacent to the men's locker room is a racquetball court. Down the stairs at the entrance to the racquetball court is a separate locker room for male faculty and staff.