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Grand Ballroom ABC at Huntington Convention Center of Cleveland

Published dimensions

Grand Ballroom ABC is 73.8 x 40.8 m (242 x 134 ft), 3,011 m² (32,410 sq ft), with a 7.3 m (24 ft) ceiling.

Plan view

LED wall that fits

Under a 7.3 m ceiling with 1.5 m trim and 0.3 m clearance you get 11 rows of 500 mm tile flown. Along the 73.8 m wall a Absen A2 Pro wall runs 118 x 11 (19824 x 1848 px, 12,980 kg, 240.1 kW).

Panel	Pitch	Wall (cols x rows)	Size	Resolution	Weight	Power (max)
9thPanel DW1.9 S Pro	1.875 mm	98 x 16 = 1568	58.8 x 5.4 m	31360 x 2880	7,526 kg / 16,593 lb	398.3 kW, 1915 A @ 208 V
Absen A2 Pro	2.97 mm	118 x 11 = 1298	59 x 5.5 m	19824 x 1848	12,980 kg / 28,616 lb	240.1 kW, 1154 A @ 208 V
Absen A3 Pro	3.9 mm	118 x 11 = 1298	59 x 5.5 m	15104 x 1408	12,331 kg / 27,185 lb	207.7 kW, 998 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 ABC holds about 6,504 theater seats, 2,660 banquet seats at rounds of 10, or 1,829 classroom seats. Back row in theater is roughly 66.8 m from the downstage edge; the previz checks whether the bottom of the wall clears the heads in front.

Other rooms at Huntington Convention Center of Cleveland

Exhibit Hall ABC166.7 x 192.3 m (547 x 631 ft) · 12.2 m ceiling
Exhibit Hall BC96.9 x 192.3 m (318 x 631 ft) · 12.2 m ceiling
Exhibit Hall AB166.7 x 93.9 m (547 x 308 ft) · 9.1 m ceiling
Exhibit Hall C96.6 x 98.8 m (317 x 324 ft) · 12.2 m ceiling
Exhibit Hall B96.6 x 93.9 m (317 x 308 ft) · 9.1 m ceiling
Exhibit Hall A75.4 x 64.4 m (247 x 211 ft) · 9.1 m ceiling
Grand Ballroom BC50.3 x 40.8 m (165 x 134 ft) · 7.6 m ceiling
Grand Ballroom AB49.1 x 40.2 m (161 x 132 ft) · 7.6 m ceiling
Atrium Ballroom ABCDEF43.1 x 43.1 m (141 x 141 ft) · 3.1 m ceiling
Atrium Ballroom ABDE34.8 x 34.8 m (114 x 114 ft) · 3.1 m ceiling
The Loft33.9 x 33.9 m (111 x 111 ft) · 3.1 m ceiling
Grand Ballroom C25.6 x 40.8 m (84 x 134 ft) · 7.6 m ceiling

Published dimensions (source), fetched 2026-09-04. All rooms at Huntington Convention Center of Cleveland · Venues in Cleveland