Capitol Ballroom at JW Marriott Washington, DC

Capitol Ballroom is 39 x 18.3 m (128 x 60 ft), 714 m² (7,682 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 39 m wall a Absen A2 Pro wall runs 62 x 3 (10416 x 504 px, 1,860 kg, 34.4 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, Capitol Ballroom holds about 1,399 theater seats, 572 banquet seats at rounds of 10, or 393 classroom seats. Back row in theater is roughly 32 m from the downstage edge; the previz checks whether the bottom of the wall clears the heads in front.

Other rooms at JW Marriott Washington, DC

• Grand Ballroom54.9 x 23.2 m (180 x 76 ft) · 4.3 m ceiling
• Pre-function Area31.3 x 31.3 m (103 x 103 ft) · 3.1 m ceiling
• Terrace Area25.5 x 25.5 m (84 x 84 ft) · 3.1 m ceiling
• Meeting Level Pre-Function Area23.8 x 23.8 m (78 x 78 ft) · 3.1 m ceiling
• Penn Ave Level18.1 x 18.1 m (59 x 59 ft) · 3.1 m ceiling
• Salon I13.7 x 23.2 m (45 x 76 ft) · 4.3 m ceiling
• Salon II13.7 x 23.2 m (45 x 76 ft) · 4.3 m ceiling
• Salon III13.7 x 23.2 m (45 x 76 ft) · 4.3 m ceiling
• Salon IV13.7 x 23.2 m (45 x 76 ft) · 4.3 m ceiling
• Salon D (A+B+C)18.3 x 9.8 m (60 x 32 ft) · 3.7 m ceiling
• Salon E18.3 x 9.8 m (60 x 32 ft) · 3.7 m ceiling
• Salon F18.3 x 9.8 m (60 x 32 ft) · 3.7 m ceiling

Published dimensions (source), fetched 2026-09-05. All rooms at JW Marriott Washington, DC · Venues in Washington