National Ballroom AB at The Westin Washington, D.C. City Center

National Ballroom AB is 16.2 x 18.3 m (53 x 60 ft), 297 m² (3,191 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 18.3 m wall a Absen A2 Pro wall runs 29 x 5 (4872 x 840 px, 1,450 kg, 26.8 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, National Ballroom AB holds about 472 theater seats, 193 banquet seats at rounds of 10, or 132 classroom seats. Back row in theater is roughly 11.3 m from the downstage edge; the previz checks whether the bottom of the wall clears the heads in front.

Other rooms at The Westin Washington, D.C. City Center

• National Ballroom & East/West24.1 x 24.1 m (79 x 79 ft) · 3.1 m ceiling
• National Ballroom A-C16.2 x 28.7 m (53 x 94 ft) · 4.8 m ceiling
• Monticello Room20.1 x 16.2 m (66 x 53 ft) · 2.4 m ceiling
• 1400 North & Vista Terrace18 x 18 m (59 x 59 ft) · 3.1 m ceiling
• National Ballroom BC16.2 x 17.4 m (53 x 57 ft) · 3.1 m ceiling
• National Ballroom A & East Room15.6 x 15.6 m (51 x 51 ft) · 3.1 m ceiling
• National Ballroom C & West Room15.1 x 15.1 m (50 x 50 ft) · 3.1 m ceiling
• 1400 North13.6 x 13.6 m (45 x 45 ft) · 3.1 m ceiling
• National Ballroom Foyer13.6 x 13.6 m (45 x 45 ft) · 3.1 m ceiling
• National Ballroom A16.2 x 11.3 m (53 x 37 ft) · 4.8 m ceiling
• National Ballroom C16.2 x 10.4 m (53 x 34 ft) · 4.8 m ceiling
• Monticello West10.1 x 16.2 m (33 x 53 ft) · 2.4 m ceiling

Published dimensions (source), fetched 2026-09-05. All rooms at The Westin Washington, D.C. City Center · Venues in Washington