Chicago Ballroom at Marriott Chicago O’Hare/Rosemont
Chicago Ballroom is 51.5 x 17.4 m (169 x 57 ft), 896 m² (9,646 sq ft), with a 3 m (10 ft) ceiling.
Open in 3D previzPlan view
LED wall that fits
Under a 3 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 51.5 m wall a Absen A2 Pro wall runs 82 x 2 (13776 x 336 px, 1,640 kg, 30.3 kW).
| Panel | Pitch | Wall (cols x rows) | Size | Resolution | Weight | Power (max) |
|---|---|---|---|---|---|---|
| 9thPanel DW1.9 S Pro | 1.875 mm | 68 x 3 = 204 | 40.8 x 1 m | 21760 x 540 | 979 kg / 2,159 lb | 51.8 kW, 249 A @ 208 V |
| Absen A2 Pro | 2.97 mm | 82 x 2 = 164 | 41 x 1 m | 13776 x 336 | 1,640 kg / 3,616 lb | 30.3 kW, 146 A @ 208 V |
| Absen A3 Pro | 3.9 mm | 82 x 2 = 164 | 41 x 1 m | 10496 x 256 | 1,558 kg / 3,435 lb | 26.2 kW, 126 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, Chicago Ballroom holds about 1,804 theater seats, 738 banquet seats at rounds of 10, or 507 classroom seats. Back row in theater is roughly 44.5 m from the downstage edge; the previz checks whether the bottom of the wall clears the heads in front.
Other rooms at Marriott Chicago O’Hare/Rosemont
- Grand Ballroom21.9 x 39.3 m (72 x 129 ft) · 5.5 m ceiling
- Grand Ballroom Pre-Function21.9 x 39.3 m (72 x 129 ft) · 3.7 m ceiling
- Grand Ballroom 1-429.3 x 21.9 m (96 x 72 ft) · 5.5 m ceiling
- O'Hare Ballroom23.5 x 25.3 m (77 x 83 ft) · 4.3 m ceiling
- O'Hare Pre-function Space23.5 x 25.3 m (77 x 83 ft) · 4.3 m ceiling
- Grand Ballroom 421.9 x 19.2 m (72 x 63 ft) · 5.5 m ceiling
- O'Hare Terminal 513.4 x 25.3 m (44 x 83 ft) · 4.3 m ceiling
- Chicago F+G17.4 x 17.1 m (57 x 56 ft) · 3 m ceiling
- Chicago A-C17.4 x 16.2 m (57 x 53 ft) · 3 m ceiling
- O'Hare Ballroom Terminal 1-325.3 x 10.1 m (83 x 33 ft) · 4.3 m ceiling
- Salons 8, 9 & 1010.4 x 21.9 m (34 x 72 ft) · 3.7 m ceiling
- Grand Ballroom 1-321.9 x 10.1 m (72 x 33 ft) · 3.7 m ceiling
Published dimensions (source), fetched 2026-09-04. All rooms at Marriott Chicago O’Hare/Rosemont · Venues in Chicago