Historic Walnut Ballroom at The Allegro Royal Sonesta Hotel Chicago Loop

Historic Walnut Ballroom is 25.9 x 12.2 m (85 x 40 ft), 316 m² (3,401 sq ft), with a 4.6 m (15 ft) ceiling.

Plan view

LED wall that fits

Under a 4.6 m ceiling with 1.5 m trim and 0.3 m clearance you get 5 rows of 500 mm tile flown. Along the 25.9 m wall a Absen A2 Pro wall runs 41 x 5 (6888 x 840 px, 2,050 kg, 37.9 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, Historic Walnut Ballroom holds about 515 theater seats, 210 banquet seats at rounds of 10, or 145 classroom seats. Back row in theater is roughly 18.9 m from the downstage edge; the previz checks whether the bottom of the wall clears the heads in front.

Other rooms at The Allegro Royal Sonesta Hotel Chicago Loop

• Imperial37.8 x 10.4 m (124 x 34 ft) · 2.7 m ceiling
• Imperial I21.9 x 10.4 m (72 x 34 ft) · 2.7 m ceiling
• Savoy21.3 x 7.9 m (70 x 26 ft) · 2.7 m ceiling
• Orpheum20.1 x 6.4 m (66 x 21 ft) · 2.7 m ceiling
• Palladium13.4 x 8.8 m (44 x 29 ft) · 2.7 m ceiling
• Walnut Gallery13.7 x 7.9 m (45 x 26 ft) · 4.6 m ceiling
• Imperial II15.8 x 5.8 m (52 x 19 ft) · 2.7 m ceiling
• Starlet Suite5.8 x 15.2 m (19 x 50 ft) · 2.7 m ceiling
• Orpheum I13.4 x 6.4 m (44 x 21 ft) · 2.7 m ceiling
• Rialto13.4 x 6.4 m (44 x 21 ft) · 2.7 m ceiling
• Aragon6.7 x 6.4 m (22 x 21 ft) · 2.7 m ceiling
• Orpheum II6.7 x 6.4 m (22 x 21 ft) · 2.7 m ceiling

Published dimensions (source), fetched 2026-09-05. All rooms at The Allegro Royal Sonesta Hotel Chicago Loop · Venues in Chicago