The large complex includes a 16-story ritual building connected to a 10-story wing for the Ancient Arabic Order of the Nobles of the Mystic Shrine, now known as Shriners International, by the 7-story Auditorium Building. In between these areas are a 1,586-seat Scottish Rite Cathedral, and a drill hall used for trade shows and conventions. The drill hall is also home to Detroit Roller Derby. The drill hall has a floating floor, where the entire floor is laid on felt cushions. This type of construction, also known as a sprung floor, provides 'give' to the floor which tends to relieve the marchers.