- Grand Ballroom AB, GH at The Westin Chicago Lombard

- Grand Ballroom AB, GH is 11.9 x 17.7 m (39 x 58 ft), 211 m² (2,267 sq ft), with a 6.1 m (20 ft) ceiling.

Plan view

LED wall that fits

Under a 6.1 m ceiling with 1.5 m trim and 0.3 m clearance you get 8 rows of 500 mm tile flown. Along the 17.7 m wall a Absen A2 Pro wall runs 28 x 8 (4704 x 1344 px, 2,240 kg, 41.4 kW).

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 AB, GH holds about 281 theater seats, 115 banquet seats at rounds of 10, or 79 classroom seats. Back row in theater is roughly 10.7 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 Lombard

• Grand Ballroom45.4 x 39.3 m (149 x 129 ft) · 6.1 m ceiling
• - Grand Ballroom ABCDEF, EFGHIJ33.8 x 39.3 m (111 x 129 ft) · 6.1 m ceiling
• - Grand Ballroom ABCDE, FGHIJ22.9 x 39.3 m (75 x 129 ft) · 6.1 m ceiling
• - Grand Ballroom EF21.9 x 39.3 m (72 x 129 ft) · 7 m ceiling
• Junior Ballroom20.4 x 38.7 m (67 x 127 ft) · 5.5 m ceiling
• Harry Caray's Private Banquet Space33.8 x 16.8 m (111 x 55 ft) · 4.6 m ceiling
• - Junior Ballroom AB20.4 x 25.9 m (67 x 85 ft) · 5.5 m ceiling
• - Junior Ballroom BC20.4 x 25.6 m (67 x 84 ft) · 5.5 m ceiling
• Lilac27.1 x 17.7 m (89 x 58 ft) · 4 m ceiling
• - Grand Ballroom E, F11.9 x 39.3 m (39 x 129 ft) · 7 m ceiling
• - Grand Ballroom ABCD, GHIJ11.9 x 37.2 m (39 x 122 ft) · 6.1 m ceiling
• - Grand Ballroom BCD, HIJ11.9 x 28 m (39 x 92 ft) · 6.1 m ceiling

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