Ontario Ballroom at Courtyard Chicago Downtown/Magnificent Mile
Ontario Ballroom is 10.4 x 23.5 m (34 x 77 ft), 244 m² (2,631 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 23.5 m wall a Absen A2 Pro wall runs 37 x 2 (6216 x 336 px, 740 kg, 13.7 kW).
| Panel | Pitch | Wall (cols x rows) | Size | Resolution | Weight | Power (max) |
|---|---|---|---|---|---|---|
| 9thPanel DW1.9 S Pro | 1.875 mm | 31 x 3 = 93 | 18.6 x 1 m | 9920 x 540 | 446 kg / 984 lb | 23.6 kW, 114 A @ 208 V |
| Absen A2 Pro | 2.97 mm | 37 x 2 = 74 | 18.5 x 1 m | 6216 x 336 | 740 kg / 1,631 lb | 13.7 kW, 66 A @ 208 V |
| Absen A3 Pro | 3.9 mm | 37 x 2 = 74 | 18.5 x 1 m | 4736 x 256 | 703 kg / 1,550 lb | 11.8 kW, 57 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, Ontario Ballroom holds about 356 theater seats, 145 banquet seats at rounds of 10, or 100 classroom seats. Back row in theater is roughly 16.5 m from the downstage edge; the previz checks whether the bottom of the wall clears the heads in front.
Other rooms at Courtyard Chicago Downtown/Magnificent Mile
- Ontario A & B10.4 x 16.8 m (34 x 55 ft) · 3 m ceiling
- Ontario B/C10.4 x 14.6 m (34 x 48 ft) · 3 m ceiling
- Ontario A10.4 x 8.8 m (34 x 29 ft) · 3 m ceiling
- Ontario B10.4 x 7.9 m (34 x 26 ft) · 3 m ceiling
- Ontario C10.4 x 6.7 m (34 x 22 ft) · 3 m ceiling
- Michigan5.5 x 7.3 m (18 x 24 ft) · 3 m ceiling
- Chicago Boardroom4.3 x 6.7 m (14 x 22 ft) · 3 m ceiling
- St. Clair6.7 x 4.3 m (22 x 14 ft) · 3 m ceiling
Published dimensions (source), fetched 2026-09-05. All rooms at Courtyard Chicago Downtown/Magnificent Mile · Venues in Chicago