Grand Ballroom at Hyatt Regency O'Hare Chicago
Grand Ballroom is 69.2 x 40.8 m (227 x 134 ft), 2,823 m² (30,391 sq ft), with a 7 m (23 ft) ceiling.
Open in 3D previzPlan view
LED wall that fits
Under a 7 m ceiling with 1.5 m trim and 0.3 m clearance you get 10 rows of 500 mm tile flown. Along the 69.2 m wall a Absen A2 Pro wall runs 110 x 10 (18480 x 1680 px, 11,000 kg, 203.5 kW).
| Panel | Pitch | Wall (cols x rows) | Size | Resolution | Weight | Power (max) |
|---|---|---|---|---|---|---|
| 9thPanel DW1.9 S Pro | 1.875 mm | 92 x 15 = 1380 | 55.2 x 5.1 m | 29440 x 2700 | 6,624 kg / 14,603 lb | 350.5 kW, 1685 A @ 208 V |
| Absen A2 Pro | 2.97 mm | 110 x 10 = 1100 | 55 x 5 m | 18480 x 1680 | 11,000 kg / 24,251 lb | 203.5 kW, 978 A @ 208 V |
| Absen A3 Pro | 3.9 mm | 110 x 10 = 1100 | 55 x 5 m | 14080 x 1280 | 10,450 kg / 23,038 lb | 176 kW, 846 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 6,087 theater seats, 2,490 banquet seats at rounds of 10, or 1,712 classroom seats. Back row in theater is roughly 62.2 m from the downstage edge; the previz checks whether the bottom of the wall clears the heads in front.
Other rooms at Hyatt Regency O'Hare Chicago
- Grand ABCD46 x 56.1 m (151 x 184 ft) · 7 m ceiling
- Grand EFGH46 x 56.1 m (151 x 184 ft) · 7 m ceiling
- Grand ABCDE46 x 40.8 m (151 x 134 ft) · 7 m ceiling
- Grand DEFGH46 x 40.8 m (151 x 134 ft) · 7 m ceiling
- Rosemont Ballroom Complex37.4 x 37.4 m (123 x 123 ft) · 5.6 m ceiling
- International Ballroom40.2 x 25.3 m (132 x 83 ft) · 2.6 m ceiling
- Rosemont Ballroom36.2 x 24.7 m (119 x 81 ft) · 5.6 m ceiling
- Grand ABC40.8 x 18.6 m (134 x 61 ft) · 7.6 m ceiling
- Grand Ballroom FGH40.8 x 18.6 m (134 x 61 ft) · 7 m ceiling
- Grand Ballroom Foyer27.3 x 27.3 m (90 x 90 ft) · 3.1 m ceiling
- Grand Ballroom AB22.7 x 22.7 m (74 x 74 ft) · 7 m ceiling
- Grand Ballroom BC22.7 x 22.7 m (74 x 74 ft) · 7 m ceiling
Published dimensions (source), fetched 2026-09-05. All rooms at Hyatt Regency O'Hare Chicago · Venues in Rosemont