Grand Ballroom at Hyatt Regency St. Louis at The Arch
Grand Ballroom is 43.1 x 43.1 m (141 x 141 ft), 1,858 m² (19,995 sq ft), with a 3.1 m (10 ft) ceiling.
Open in 3D previzPlan view
LED wall that fits
Under a 3.1 m ceiling with 1.5 m trim and 0.3 m clearance you get 2 rows of 500 mm tile flown, which is tight; ground-stack or go lower on trim. Along the 43.1 m wall a Absen A2 Pro wall runs 68 x 2 (11424 x 336 px, 1,360 kg, 25.2 kW).
| Panel | Pitch | Wall (cols x rows) | Size | Resolution | Weight | Power (max) |
|---|---|---|---|---|---|---|
| 9thPanel DW1.9 S Pro | 1.875 mm | 57 x 3 = 171 | 34.2 x 1 m | 18240 x 540 | 821 kg / 1,810 lb | 43.4 kW, 209 A @ 208 V |
| Absen A2 Pro | 2.97 mm | 68 x 2 = 136 | 34 x 1 m | 11424 x 336 | 1,360 kg / 2,998 lb | 25.2 kW, 121 A @ 208 V |
| Absen A3 Pro | 3.9 mm | 68 x 2 = 136 | 34 x 1 m | 8704 x 256 | 1,292 kg / 2,848 lb | 21.8 kW, 105 A @ 208 V |
Wall sizing assumes 1.5 m trim to the bottom edge, 0.3 m clearance under the ceiling, and a wall no wider than 80% of the longest wall. Weight and power are tile totals from the panel spec sheet; add processing, rigging, and cable.
Seating estimate
After a 12 x 7 m stage, Grand Ballroom holds about 3,941 theater seats, 1,612 banquet seats at rounds of 10, or 1,108 classroom seats. Back row in theater is roughly 36.1 m from the downstage edge; the previz checks whether the bottom of the wall clears the heads in front.
Other rooms at Hyatt Regency St. Louis at The Arch
- Regency Ballroom39.5 x 39.5 m (130 x 130 ft) · 3.1 m ceiling
- Gateway East, West and Terrace23.6 x 23.6 m (77 x 77 ft) · 3.1 m ceiling
- Park View17.5 x 17.5 m (57 x 57 ft) · 3.1 m ceiling
- Conference Rooms, Boardrooms and Conference Suites10 x 10 m (33 x 33 ft) · 3.1 m ceiling
Published dimensions (source), fetched 2026-09-05. All rooms at Hyatt Regency St. Louis at The Arch · Venues in St Louis