Grand Ballroom B at The Westin Chicago River North

Grand Ballroom B is 23.2 x 9.1 m (76 x 30 ft), 211 m² (2,272 sq ft), with a 5.5 m (18 ft) ceiling.

Plan view

LED wall that fits

Under a 5.5 m ceiling with 1.5 m trim and 0.3 m clearance you get 7 rows of 500 mm tile flown. Along the 23.2 m wall a Absen A2 Pro wall runs 37 x 7 (6216 x 1176 px, 2,590 kg, 47.9 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 B holds about 282 theater seats, 115 banquet seats at rounds of 10, or 79 classroom seats. Back row in theater is roughly 16.2 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

• Grand Ballroom23.2 x 33.8 m (76 x 111 ft) · 5.2 m ceiling
• Riverfront18.3 x 26.5 m (60 x 87 ft) · 3.7 m ceiling
• Grand Ballroom AB23.2 x 20 m (76 x 66 ft) · 5.5 m ceiling
• Grand Ballroom BC23.2 x 20 m (76 x 66 ft) · 5.5 m ceiling
• Grand Court34.1 x 12.5 m (112 x 41 ft) · 3.3 m ceiling
• Promenade Ballroom13.1 x 25.3 m (43 x 83 ft) · 3 m ceiling
• Astor Ballroom14 x 18.9 m (46 x 62 ft) · 3.9 m ceiling
• Grand Ballroom A23.2 x 10.9 m (76 x 36 ft) · 5.5 m ceiling
• Grand Ballroom C23.2 x 10.9 m (76 x 36 ft) · 5.5 m ceiling
• Promenade Ballroom AB13.1 x 16.6 m (43 x 54 ft) · 3.7 m ceiling
• Promenade Ballroom BC13.1 x 16.6 m (43 x 54 ft) · 3.7 m ceiling
• Executive Boardroom12.2 x 9.8 m (40 x 32 ft) · 2.9 m ceiling

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