St. Clair Ballroom at Hyatt Centric Chicago Mag Mile **Newly renovated guestrooms & Grand Ballroom**
St. Clair Ballroom is 8.2 x 31.7 m (27 x 104 ft), 260 m² (2,798 sq ft), with a 2.9 m (10 ft) ceiling.
Open in 3D previzPlan view
LED wall that fits
Under a 2.9 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 31.7 m wall a Absen PL2.5 Plus V2 wall runs 50 x 2 (10000 x 400 px, 780 kg, 16 kW).
| Panel | Pitch | Wall (cols x rows) | Size | Resolution | Weight | Power (max) |
|---|---|---|---|---|---|---|
| Absen KLCOB 0.78 | 0.78 mm | 42 x 3 = 126 | 25.2 x 1 m | 32256 x 1296 | 567 kg / 1,250 lb | 11.1 kW, 54 A @ 208 V |
| Absen PL2.5 Plus V2 | 2.5 mm | 50 x 2 = 100 | 25 x 1 m | 10000 x 400 | 780 kg / 1,720 lb | 16 kW, 77 A @ 208 V |
| Absen PL3.9 Plus V2 | 3.9 mm | 50 x 2 = 100 | 25 x 1 m | 6400 x 256 | 780 kg / 1,720 lb | 14 kW, 67 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, St. Clair Ballroom holds about 390 theater seats, 159 banquet seats at rounds of 10, or 109 classroom seats. Back row in theater is roughly 24.7 m from the downstage edge; the previz checks whether the bottom of the wall clears the heads in front.
Other rooms at Hyatt Centric Chicago Mag Mile **Newly renovated guestrooms & Grand Ballroom**
- Lakeshore Ballroom28.3 x 15.5 m (93 x 51 ft) · 2.9 m ceiling
- Grand Ballroom15.8 x 27.4 m (52 x 90 ft) · 3.7 m ceiling
- Grand Ballroom Salon AB18 x 16.8 m (59 x 55 ft) · 3.7 m ceiling
- Grand Ballroom Salon BC18 x 16.8 m (59 x 55 ft) · 3.7 m ceiling
- Lakeshore West16.5 x 15.5 m (54 x 51 ft) · 2.9 m ceiling
- Lakeshore East13.4 x 15.5 m (44 x 51 ft) · 2.9 m ceiling
- Grand Ballroom Prefunction II15.2 x 12.2 m (50 x 40 ft) · 3.7 m ceiling
- St. Clair Salon 1 & 28.2 x 21.9 m (27 x 72 ft) · 2.9 m ceiling
- St. Clair Salon 2 & 38.2 x 19.8 m (27 x 65 ft) · 2.9 m ceiling
- Grand Ballroom Salon A9.1 x 16.8 m (30 x 55 ft) · 3.7 m ceiling
- Grand Ballroom Salon B8.8 x 15.2 m (29 x 50 ft) · 3.7 m ceiling
- Grand Ballroom Salon C9.1 x 13.4 m (30 x 44 ft) · 3.7 m ceiling
Published dimensions (source), fetched 2026-09-05. All rooms at Hyatt Centric Chicago Mag Mile **Newly renovated guestrooms & Grand Ballroom** · Venues in Chicago