Marriott Chicago O’Hare/Rosemont

Marriott Chicago O’Hare/Rosemont in Chicago lists 47 event spaces totaling 8,920 m² (96,009 sq ft). The largest is Chicago Ballroom at 51.5 x 17.4 m (169 x 57 ft) with a 3 m (10 ft) ceiling. The tallest ceiling on the property is 5.5 m (18 ft).

Rooms

What fits in Chicago Ballroom

With a 3 m ceiling, a flown wall of Absen A2 Pro (2.97 mm) runs 82 tiles wide by 2 high (164 tiles, 41 x 1 m, 13776 x 336 px) once you keep 1.5 m of trim under the bottom edge. That wall weighs about 1,640 kg and draws up to 30.3 kW (146 A at 208 V). Floor space after a 12 x 7 m stage seats roughly 1,804 theater, 738 banquet, or 507 classroom. The previz lets you move the wall, change the tile, and check sightlines from the back row.

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.

Planning notes

No rigging point data is published for this venue yet; plan on ground-supported LED or ask the venue for its rigging plot. 24 of the 47 rooms sit under 3.5 m, which rules out flown LED there and limits ground-stacked walls to about 6 rows of 500 mm tile. Chicago Ballroom is a long room (3:1), so put the wall on the short end and expect the back row to be 51.5 m out; a 2.97 mm pitch holds up at that distance.

Data source

Published dimensions. Dimensions from the venue's published meeting-space specifications (source). Rooms drawn as boxes use published length x width; square rooms were derived from published area only, so treat their shape as approximate. Venue managers: send a floor plan to upgrade your listing to production-ready.

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