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Great Lakes Ballroom Foyer at Marriott Marquis Chicago

Published dimensions

Great Lakes Ballroom Foyer is 27.1 x 27.1 m (89 x 89 ft), 734 m² (7,905 sq ft), with a 3.1 m (10 ft) ceiling.

Plan view

Shape approximate: the venue publishes area only, so this room is drawn as a square of equal area.

LED wall that fits

Under a 3.1 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 27.1 m wall a Absen A2 Pro wall runs 43 x 2 (7224 x 336 px, 860 kg, 15.9 kW).

Panel	Pitch	Wall (cols x rows)	Size	Resolution	Weight	Power (max)
9thPanel DW1.9 S Pro	1.875 mm	36 x 3 = 108	21.6 x 1 m	11520 x 540	518 kg / 1,143 lb	27.4 kW, 132 A @ 208 V
Absen A2 Pro	2.97 mm	43 x 2 = 86	21.5 x 1 m	7224 x 336	860 kg / 1,896 lb	15.9 kW, 76 A @ 208 V
Absen A3 Pro	3.9 mm	43 x 2 = 86	21.5 x 1 m	5504 x 256	817 kg / 1,801 lb	13.8 kW, 66 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 Foyer holds about 1,445 theater seats, 591 banquet seats at rounds of 10, or 406 classroom seats. Back row in theater is roughly 20.1 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 W37563.7 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 W375BC63.4 x 54.9 m (208 x 180 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 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
Great Lakes Ballroom51.2 x 45.4 m (168 x 149 ft) · 7.3 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 2026-09-04. All rooms at Marriott Marquis Chicago · Venues in Chicago