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Grand Horizon D at Marriott Marquis Chicago

Published dimensions

Grand Horizon D is 45.4 x 10.4 m (149 x 34 ft), 472 m² (5,083 sq ft), with a 8.8 m (29 ft) ceiling.

Plan view

LED wall that fits

Under a 8.8 m ceiling with 1.5 m trim and 0.3 m clearance you get 14 rows of 500 mm tile flown. Along the 45.4 m wall a Absen PL2.5 Plus V2 wall runs 72 x 14 (14400 x 2800 px, 7,862 kg, 161.3 kW).

Panel	Pitch	Wall (cols x rows)	Size	Resolution	Weight	Power (max)
Absen KLCOB 0.78	0.78 mm	60 x 20 = 1200	36 x 6.8 m	46080 x 8640	5,400 kg / 11,905 lb	106.2 kW, 511 A @ 208 V
Absen PL2.5 Plus V2	2.5 mm	72 x 14 = 1008	36 x 7 m	14400 x 2800	7,862 kg / 17,333 lb	161.3 kW, 775 A @ 208 V
Absen PL3.9 Plus V2	3.9 mm	72 x 14 = 1008	36 x 7 m	9216 x 1792	7,862 kg / 17,333 lb	141.1 kW, 678 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 Horizon D holds about 862 theater seats, 352 banquet seats at rounds of 10, or 242 classroom seats. Back row in theater is roughly 38.4 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