Chicago Alton & Metra at The Blackstone, Marriott Autograph Collection

Chicago Alton & Metra is 14.3 x 11.9 m (47 x 39 ft), 170 m² (1,832 sq ft), with a 2.7 m (9 ft) ceiling.

Plan view

LED wall that fits

Under a 2.7 m ceiling with 1.5 m trim and 0.3 m clearance you get 1 rows of 500 mm tile flown, which is tight; ground-stack or go lower on trim. Along the 14.3 m wall a Absen PL2.5 Plus V2 wall runs 22 x 1 (4400 x 200 px, 172 kg, 3.5 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, Chicago Alton & Metra holds about 191 theater seats, 78 banquet seats at rounds of 10, or 53 classroom seats. Back row in theater is roughly 7.3 m from the downstage edge; the previz checks whether the bottom of the wall clears the heads in front.

Other rooms at The Blackstone, Marriott Autograph Collection

• Ballroom Level 4 Full Floor28.2 x 28.2 m (93 x 93 ft) · 3.1 m ceiling
• Art Hall Level 5 Full Floor25.3 x 25.3 m (83 x 83 ft) · 3.1 m ceiling
• Crystal Ballroom with Pre-function23.5 x 23.5 m (77 x 77 ft) · 3.1 m ceiling
• Concourse Level 1 Full Floor22.1 x 22.1 m (73 x 73 ft) · 3.1 m ceiling
• Chicago & Alton/Metra/L with Pre-function19.1 x 19.1 m (63 x 63 ft) · 3.1 m ceiling
• Historic Art Hall Pre-function19.1 x 19.1 m (63 x 63 ft) · 3.1 m ceiling
• Crystal Ballroom22.6 x 14 m (74 x 46 ft) · 6.4 m ceiling
• Chicago & Alton/Metra/L16.3 x 16.3 m (53 x 53 ft) · 3.1 m ceiling
• Chicago Alton & L20.4 x 11.9 m (67 x 39 ft) · 2.7 m ceiling
• The Train Rooms (Dividable)20.4 x 11.9 m (67 x 39 ft) · 2.7 m ceiling
• Taste Ballroom with Pre-function15.1 x 15.1 m (50 x 50 ft) · 3.1 m ceiling
• Ballroom Pre-Function30.5 x 7 m (100 x 23 ft) · 2.7 m ceiling

Published dimensions (source), fetched 2026-09-05. All rooms at The Blackstone, Marriott Autograph Collection · Venues in Chicago