401 - Chelan at Hyatt Regency Seattle

401 - Chelan is 11.3 x 10.1 m (37 x 33 ft), 114 m² (1,228 sq ft), with a 3.7 m (12 ft) ceiling.

Plan view

LED wall that fits

Under a 3.7 m ceiling with 1.5 m trim and 0.3 m clearance you get 3 rows of 500 mm tile flown, which is tight; ground-stack or go lower on trim. Along the 11.3 m wall a Absen A2 Pro wall runs 18 x 3 (3024 x 504 px, 540 kg, 10 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, 401 - Chelan holds about 66 theater seats, 27 banquet seats at rounds of 10, or 18 classroom seats. Back row in theater is roughly 4.3 m from the downstage edge; the previz checks whether the bottom of the wall clears the heads in front.

Other rooms at Hyatt Regency Seattle

• Columbia Ballroom58.8 x 30.2 m (193 x 99 ft) · 7.3 m ceiling
• Regency Ballroom58.5 x 29.9 m (192 x 98 ft) · 8.5 m ceiling
• Columbia BCD39.3 x 30.2 m (129 x 99 ft) · 7.3 m ceiling
• Regency B38.4 x 29.9 m (126 x 98 ft) · 8.5 m ceiling
• Columbia CD29 x 29.9 m (95 x 98 ft) · 7.3 m ceiling
• Elwha Ballroom19.2 x 34.1 m (63 x 112 ft) · 7.3 m ceiling
• Columbia A19.5 x 29.9 m (64 x 98 ft) · 7.3 m ceiling
• Regency Ballroom Prefunction36.6 x 14.6 m (120 x 48 ft) · 3.4 m ceiling
• Columbia C29 x 14.9 m (95 x 49 ft) · 7.3 m ceiling
• Columbia D29 x 14.9 m (95 x 49 ft) · 7.3 m ceiling
• Columbia Ballroom Prefunction32.9 x 12.8 m (108 x 42 ft) · 8.5 m ceiling
• Level 4 Mezzanine33.5 x 12.2 m (110 x 40 ft) · 3.7 m ceiling

Published dimensions (source), fetched 2026-09-04. All rooms at Hyatt Regency Seattle · Venues in Seattle