Grand Ballroom B & C at St. Charles Convention Center - Connected to Embassy Suites St. Louis St. Charles Hotel
Grand Ballroom B & C is 27.4 x 54.9 m (90 x 180 ft), 1,504 m² (16,192 sq ft), with a 6.7 m (22 ft) ceiling.
Open in 3D previzPlan view
LED wall that fits
Under a 6.7 m ceiling with 1.5 m trim and 0.3 m clearance you get 9 rows of 500 mm tile flown. Along the 54.9 m wall a Absen A2 Pro wall runs 87 x 9 (14616 x 1512 px, 7,830 kg, 144.9 kW).
| Panel | Pitch | Wall (cols x rows) | Size | Resolution | Weight | Power (max) |
|---|---|---|---|---|---|---|
| 9thPanel DW1.9 S Pro | 1.875 mm | 73 x 14 = 1022 | 43.8 x 4.7 m | 23360 x 2520 | 4,906 kg / 10,815 lb | 259.6 kW, 1248 A @ 208 V |
| Absen A2 Pro | 2.97 mm | 87 x 9 = 783 | 43.5 x 4.5 m | 14616 x 1512 | 7,830 kg / 17,262 lb | 144.9 kW, 696 A @ 208 V |
| Absen A3 Pro | 3.9 mm | 87 x 9 = 783 | 43.5 x 4.5 m | 11136 x 1152 | 7,439 kg / 16,399 lb | 125.3 kW, 602 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 B & C holds about 3,156 theater seats, 1,291 banquet seats at rounds of 10, or 887 classroom seats. Back row in theater is roughly 47.9 m from the downstage edge; the previz checks whether the bottom of the wall clears the heads in front.
Other rooms at St. Charles Convention Center - Connected to Embassy Suites St. Louis St. Charles Hotel
- Expanded Exhibit Hall (Includes Jr. Ballroom)88.7 x 38.1 m (291 x 125 ft) · 7.6 m ceiling
- Combined Exhibit Hall67.7 x 38.1 m (222 x 125 ft) · 7.6 m ceiling
- Grand Ballroom (all)55.2 x 27.4 m (181 x 90 ft) · 6.7 m ceiling
- Grand Ballroom A & B27.4 x 54.9 m (90 x 180 ft) · 6.7 m ceiling
- North Exhibit Hall36 x 38.1 m (118 x 125 ft) · 7.6 m ceiling
- South Exhibit Hall31.7 x 38.1 m (104 x 125 ft) · 7.6 m ceiling
- Junior Ballroom (all)35.4 x 16.5 m (116 x 54 ft) · 5.5 m ceiling
- Grand Ballroom A13.7 x 27.4 m (45 x 90 ft) · 6.7 m ceiling
- Grand Ballroom B13.7 x 27.4 m (45 x 90 ft) · 6.7 m ceiling
- Grand Ballroom C13.7 x 27.4 m (45 x 90 ft) · 6.7 m ceiling
- Grand Ballroom D13.7 x 27.4 m (45 x 90 ft) · 6.7 m ceiling
- Junior Ballroom CD16.8 x 16.8 m (55 x 55 ft) · 4.9 m ceiling
Published dimensions (source), fetched 2026-09-05. All rooms at St. Charles Convention Center - Connected to Embassy Suites St. Louis St. Charles Hotel · Venues in St Charles