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Great Lakes Ballroom at Marriott Marquis Chicago

Published dimensions

Great Lakes Ballroom is 51.3 x 45.4 m (168 x 149 ft), 2,329 m² (25,069 sq ft), with a 7.3 m (24 ft) ceiling.

Plan 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 51.3 m wall a Absen PL2.5 Plus V2 wall runs 82 x 11 (16400 x 2200 px, 7,036 kg, 144.3 kW).

Panel	Pitch	Wall (cols x rows)	Size	Resolution	Weight	Power (max)
Absen KLCOB 0.78	0.78 mm	68 x 16 = 1088	40.8 x 5.4 m	52224 x 6912	4,896 kg / 10,794 lb	96.3 kW, 463 A @ 208 V
Absen PL2.5 Plus V2	2.5 mm	82 x 11 = 902	41 x 5.5 m	16400 x 2200	7,036 kg / 15,511 lb	144.3 kW, 694 A @ 208 V
Absen PL3.9 Plus V2	3.9 mm	82 x 11 = 902	41 x 5.5 m	10496 x 1408	7,036 kg / 15,511 lb	126.3 kW, 607 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 holds about 4,988 theater seats, 2,040 banquet seats at rounds of 10, or 1,403 classroom seats. Back row in theater is roughly 44.3 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
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
Skyline Ballroom at McCormick Place W375B63.4 x 27.4 m (208 x 90 ft) · 12.2 m ceiling

Published dimensions (source), fetched 2026-09-05. All rooms at Marriott Marquis Chicago · Venues in Chicago