Congressional Ballroom at Holiday Inn Washington Capitol - National Mall
Congressional Ballroom is 19.8 x 17.7 m (65 x 58 ft), 351 m² (3,773 sq ft), with a 3.7 m (12 ft) ceiling.
Open in 3D previzPlan 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 19.8 m wall a Absen A2 Pro wall runs 31 x 3 (5208 x 504 px, 930 kg, 17.2 kW).
| Panel | Pitch | Wall (cols x rows) | Size | Resolution | Weight | Power (max) |
|---|---|---|---|---|---|---|
| 9thPanel DW1.9 S Pro | 1.875 mm | 26 x 5 = 130 | 15.6 x 1.7 m | 8320 x 900 | 624 kg / 1,376 lb | 33 kW, 159 A @ 208 V |
| Absen A2 Pro | 2.97 mm | 31 x 3 = 93 | 15.5 x 1.5 m | 5208 x 504 | 930 kg / 2,050 lb | 17.2 kW, 83 A @ 208 V |
| Absen A3 Pro | 3.9 mm | 31 x 3 = 93 | 15.5 x 1.5 m | 3968 x 384 | 884 kg / 1,948 lb | 14.9 kW, 72 A @ 208 V |
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, Congressional Ballroom holds about 592 theater seats, 242 banquet seats at rounds of 10, or 166 classroom seats. Back row in theater is roughly 12.8 m from the downstage edge; the previz checks whether the bottom of the wall clears the heads in front.
Other rooms at Holiday Inn Washington Capitol - National Mall
- Capitol Ballroom12.5 x 22.9 m (41 x 75 ft) · 4.3 m ceiling
- Congressional II10.7 x 17.7 m (35 x 58 ft) · 3.7 m ceiling
- Capitol I12.5 x 12.8 m (41 x 42 ft) · 4.3 m ceiling
- Capitol II12.5 x 10.1 m (41 x 33 ft) · 4.3 m ceiling
- Congressional I9.1 x 11.6 m (30 x 38 ft) · 3.7 m ceiling
- House Room7.3 x 11.6 m (24 x 38 ft) · 2.7 m ceiling
- Senate Room7.3 x 4.9 m (24 x 16 ft) · 2.4 m ceiling
- Caucus Boardroom6.1 x 4.6 m (20 x 15 ft) · 2.4 m ceiling
Published dimensions (source), fetched 2026-09-05. All rooms at Holiday Inn Washington Capitol - National Mall · Venues in Washington