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Grand Ballroom at The Westin Chicago Northwest

Published dimensionsLargest room

Grand Ballroom is 24.4 x 36.6 m (80 x 120 ft), 893 m² (9,612 sq ft), with a 5.8 m (19 ft) ceiling.

Open in 3D previz

Plan view

24.4 m / 80 ft36.6 m / 120 ft grid 5 m

LED wall that fits

Under a 5.8 m ceiling with 1.5 m trim and 0.3 m clearance you get 7 rows of 500 mm tile flown. Along the 36.6 m wall a Absen PL2.5 Plus V2 wall runs 58 x 7 (11600 x 1400 px, 3,167 kg, 65 kW).

PanelPitchWall (cols x rows)SizeResolutionWeightPower (max)
Absen KLCOB 0.780.78 mm48 x 11 = 52828.8 x 3.7 m36864 x 47522,376 kg / 5,238 lb46.7 kW, 225 A @ 208 V
Absen PL2.5 Plus V22.5 mm58 x 7 = 40629 x 3.5 m11600 x 14003,167 kg / 6,982 lb65 kW, 312 A @ 208 V
Absen PL3.9 Plus V23.9 mm58 x 7 = 40629 x 3.5 m7424 x 8963,167 kg / 6,982 lb56.8 kW, 273 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 1,797 theater seats, 735 banquet seats at rounds of 10, or 505 classroom seats. Back row in theater is roughly 29.6 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 Northwest

Published dimensions (source), fetched 2026-09-05. All rooms at The Westin Chicago Northwest · Venues in Itasca

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