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Grand Ballroom at The Westin Chicago River North

Published dimensionsLargest room

Grand Ballroom is 23.2 x 33.8 m (76 x 111 ft), 784 m² (8,441 sq ft), with a 5.2 m (17 ft) ceiling.

Open in 3D previz

Plan view

23.2 m / 76 ft33.8 m / 111 ft grid 5 m

LED wall that fits

Under a 5.2 m ceiling with 1.5 m trim and 0.3 m clearance you get 6 rows of 500 mm tile flown. Along the 33.8 m wall a Absen PL2.5 Plus V2 wall runs 54 x 6 (10800 x 1200 px, 2,527 kg, 51.8 kW).

PanelPitchWall (cols x rows)SizeResolutionWeightPower (max)
Absen KLCOB 0.780.78 mm45 x 10 = 45027 x 3.4 m34560 x 43202,025 kg / 4,464 lb39.8 kW, 191 A @ 208 V
Absen PL2.5 Plus V22.5 mm54 x 6 = 32427 x 3 m10800 x 12002,527 kg / 5,571 lb51.8 kW, 249 A @ 208 V
Absen PL3.9 Plus V23.9 mm54 x 6 = 32427 x 3 m6912 x 7682,527 kg / 5,571 lb45.4 kW, 218 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 holds about 1,556 theater seats, 636 banquet seats at rounds of 10, or 437 classroom seats. Back row in theater is roughly 26.8 m from the downstage edge; the previz checks whether the bottom of the wall clears the heads in front.

Other rooms at The Westin Chicago River North

Published dimensions (source), fetched 2026-09-04. All rooms at The Westin Chicago River North · Venues in Chicago

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