Great Lakes Ballroom C at Marriott Marquis Chicago
Great Lakes Ballroom C is 15.6 x 19.3 m (51 x 63 ft), 301 m² (3,241 sq ft), with a 7.3 m (24 ft) ceiling.
Open in 3D previzPlan view
LED wall that fits
Under a 7.3 m ceiling with 1.5 m trim and 0.3 m clearance you get 11 rows of 500 mm tile flown. Along the 19.3 m wall a Absen PL2.5 Plus V2 wall runs 30 x 11 (6000 x 2200 px, 2,574 kg, 52.8 kW).
| Panel | Pitch | Wall (cols x rows) | Size | Resolution | Weight | Power (max) |
|---|---|---|---|---|---|---|
| Absen KLCOB 0.78 | 0.78 mm | 25 x 16 = 400 | 15 x 5.4 m | 19200 x 6912 | 1,800 kg / 3,968 lb | 35.4 kW, 170 A @ 208 V |
| Absen PL2.5 Plus V2 | 2.5 mm | 30 x 11 = 330 | 15 x 5.5 m | 6000 x 2200 | 2,574 kg / 5,675 lb | 52.8 kW, 254 A @ 208 V |
| Absen PL3.9 Plus V2 | 3.9 mm | 30 x 11 = 330 | 15 x 5.5 m | 3840 x 1408 | 2,574 kg / 5,675 lb | 46.2 kW, 222 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, Great Lakes Ballroom C holds about 482 theater seats, 197 banquet seats at rounds of 10, or 135 classroom seats. Back row in theater is roughly 12.3 m from the downstage edge; the previz checks whether the bottom of the wall clears the heads in front.
Other rooms at Marriott Marquis Chicago
- Skyline Ballroom at McCormick Place W37563.6 x 146.6 m (209 x 481 ft) · 12.2 m ceiling
- Skyline Ballroom at McCormick Place W375CDE63.4 x 96.9 m (208 x 318 ft) · 12.2 m ceiling
- Skyline Ballroom at McCormick Place W375ABC63.4 x 76.8 m (208 x 252 ft) · 12.2 m ceiling
- Skyline Ballroom at McCormick Place W375DE60 x 69.5 m (197 x 228 ft) · 12.2 m ceiling
- Skyline Ballroom at McCormick Place W375CD63.4 x 54.9 m (208 x 180 ft) · 12.2 m ceiling
- Skyline Ballroom at McCormick Place W375BC63.4 x 54.8 m (208 x 180 ft) · 12.2 m ceiling
- Skyline Ballroom at McCormick Place W375AB63.4 x 49.4 m (208 x 162 ft) · 12.2 m ceiling
- Skyline Ballroom at McCormick Place W375E60 x 42.4 m (197 x 139 ft) · 12.2 m ceiling
- Skyline Ballroom at McCormick Place W375C27.4 x 88.4 m (90 x 290 ft) · 12.2 m ceiling
- Great Lakes Ballroom51.3 x 45.4 m (168 x 149 ft) · 7.3 m ceiling
- Grand Horizon Ballroom51.2 x 45.4 m (168 x 149 ft) · 8.8 m ceiling
- Skyline Ballroom at McCormick Place W375D27.4 x 63.7 m (90 x 209 ft) · 12.2 m ceiling
Published dimensions (source), fetched 2026-09-05. All rooms at Marriott Marquis Chicago · Venues in Chicago