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Grand Ballroom at St. Louis Union Station Hotel, Curio Collection by Hilton

Published dimensions

Grand Ballroom is 54.9 x 27.4 m (180 x 90 ft), 1,504 m² (16,192 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 54.9 m wall a Absen PL2.5 Plus V2 wall runs 87 x 8 (17400 x 1600 px, 5,429 kg, 111.4 kW).

Panel	Pitch	Wall (cols x rows)	Size	Resolution	Weight	Power (max)
Absen KLCOB 0.78	0.78 mm	73 x 12 = 876	43.8 x 4.1 m	56064 x 5184	3,942 kg / 8,691 lb	77.5 kW, 373 A @ 208 V
Absen PL2.5 Plus V2	2.5 mm	87 x 8 = 696	43.5 x 4 m	17400 x 1600	5,429 kg / 11,968 lb	111.4 kW, 535 A @ 208 V
Absen PL3.9 Plus V2	3.9 mm	87 x 8 = 696	43.5 x 4 m	11136 x 1024	5,429 kg / 11,968 lb	97.4 kW, 468 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 3,156 theater seats, 1,291 banquet seats at rounds of 10, or 887 classroom seats. Back row in theater is roughly 47.9 m from the downstage edge; the previz checks whether the bottom of the wall clears the heads in front.

Other rooms at St. Louis Union Station Hotel, Curio Collection by Hilton

Midway West + Pegram60.4 x 60.4 m (198 x 198 ft) · 3.1 m ceiling
Grand Ballroom + Regency Ballroom + Foyers55.5 x 55.5 m (182 x 182 ft) · 3.1 m ceiling
Midway85.3 x 31.1 m (280 x 102 ft) · 9.8 m ceiling
Midway East New48.7 x 48.7 m (160 x 160 ft) · 3.1 m ceiling
Grand ABCDE36.6 x 27.4 m (120 x 90 ft) · 6.1 m ceiling
Grand DEF36.6 x 27.4 m (120 x 90 ft) · 6.1 m ceiling
Grand Hall36.9 x 22.6 m (121 x 74 ft) · 18.3 m ceiling
Grand ABCD27.4 x 27.4 m (90 x 90 ft) · 6.1 m ceiling
Grand EF27.4 x 27.4 m (90 x 90 ft) · 6.1 m ceiling
Regency Ballroom27.4 x 27.4 m (90 x 90 ft) · 5.5 m ceiling
Pegram Room21.3 x 30.5 m (70 x 100 ft) · 2.7 m ceiling
Midway 7,8,9&1015.2 x 35.4 m (50 x 116 ft) · 3 m ceiling

Published dimensions (source), fetched 2026-09-04. All rooms at St. Louis Union Station Hotel, Curio Collection by Hilton · Venues in St Louis