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Junior Ballroom at Washington Marriott at Metro Center

Published dimensions

Junior Ballroom is 22.6 x 13.1 m (74 x 43 ft), 296 m² (3,187 sq ft), with a 2.9 m (10 ft) ceiling.

Plan view

LED wall that fits

Under a 2.9 m ceiling with 1.5 m trim and 0.3 m clearance you get 2 rows of 500 mm tile flown, which is tight; ground-stack or go lower on trim. Along the 22.6 m wall a Absen A2 Pro wall runs 36 x 2 (6048 x 336 px, 720 kg, 13.3 kW).

Panel	Pitch	Wall (cols x rows)	Size	Resolution	Weight	Power (max)
9thPanel DW1.9 S Pro	1.875 mm	30 x 3 = 90	18 x 1 m	9600 x 540	432 kg / 952 lb	22.9 kW, 110 A @ 208 V
Absen A2 Pro	2.97 mm	36 x 2 = 72	18 x 1 m	6048 x 336	720 kg / 1,587 lb	13.3 kW, 64 A @ 208 V
Absen A3 Pro	3.9 mm	36 x 2 = 72	18 x 1 m	4608 x 256	684 kg / 1,508 lb	11.5 kW, 55 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, Junior Ballroom holds about 471 theater seats, 192 banquet seats at rounds of 10, or 132 classroom seats. Back row in theater is roughly 15.6 m from the downstage edge; the previz checks whether the bottom of the wall clears the heads in front.

Other rooms at Washington Marriott at Metro Center

Grand Ballroom38.7 x 15.5 m (127 x 51 ft) · 3.8 m ceiling
London I & II19.2 x 6.7 m (63 x 22 ft) · 2.7 m ceiling
Salon B7.6 x 15.5 m (25 x 51 ft) · 3.8 m ceiling
Salon C7.6 x 15.5 m (25 x 51 ft) · 3.8 m ceiling
Salon D7.6 x 15.5 m (25 x 51 ft) · 3.8 m ceiling
Salon A7.3 x 15.5 m (24 x 51 ft) · 3.8 m ceiling
Salon 28.5 x 13.1 m (28 x 43 ft) · 2.9 m ceiling
Capitol Hill11 x 9.4 m (36 x 31 ft) · 2.7 m ceiling
Salon E13.4 x 7.3 m (44 x 24 ft) · 3 m ceiling
Salon 17 x 13.1 m (23 x 43 ft) · 2.9 m ceiling
Salon 37 x 13.1 m (23 x 43 ft) · 2.9 m ceiling
London II6.7 x 13.4 m (22 x 44 ft) · 2.7 m ceiling

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