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

Grand ABC is 18.3 x 18.3 m (60 x 60 ft), 335 m² (3,605 sq ft), with a 6.1 m (20 ft) ceiling.

Plan view

Shape approximate: the venue publishes area only, so this room is drawn as a square of equal area.

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 18.3 m wall a Absen A2 Pro wall runs 29 x 8 (4872 x 1344 px, 2,320 kg, 42.9 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 ABC holds about 557 theater seats, 228 banquet seats at rounds of 10, or 156 classroom seats. Back row in theater is roughly 11.3 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 Ballroom54.9 x 27.4 m (180 x 90 ft) · 6.1 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

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