DeltaPlex Arena & Conference Center (formerly Grand Rapids Stadium, Stadium Arena, and Turner Arena) is a 5,000-seat multipurpose arena in Walker, Michigan, United States. It is the home of the Grand Rapids Drive of the NBA Development League. It was built in 1952 and since then the DeltaPlex sports, entertainment and convention complex has grown around the arena. The arena is a 23,000-square-foot (2,000 m2) space, which has a 52-foot (16 m) ceiling, seats up to 7,000 for concerts and has 1,088 loge seats. It has a 60-by-56-foot portable stage. DeltaPlex Arena is a venue usable for not only sports and concerts but also trade shows, conventions and other events.