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Junior Ballroom 300D at Spokane Convention Center

Published dimensions

Junior Ballroom 300D is 11.9 x 14.6 m (39 x 48 ft), 174 m² (1,870 sq ft), with a 6.1 m (20 ft) ceiling.

Plan view

LED wall that fits

Under a 6.1 m ceiling with 1.5 m trim and 0.3 m clearance you get 8 rows of 500 mm tile flown. Along the 14.6 m wall a Absen A2 Pro wall runs 23 x 8 (3864 x 1344 px, 1,840 kg, 34 kW).

Panel	Pitch	Wall (cols x rows)	Size	Resolution	Weight	Power (max)
9thPanel DW1.9 S Pro	1.875 mm	19 x 12 = 228	11.4 x 4.1 m	6080 x 2160	1,094 kg / 2,413 lb	57.9 kW, 278 A @ 208 V
Absen A2 Pro	2.97 mm	23 x 8 = 184	11.5 x 4 m	3864 x 1344	1,840 kg / 4,056 lb	34 kW, 164 A @ 208 V
Absen A3 Pro	3.9 mm	23 x 8 = 184	11.5 x 4 m	2944 x 1024	1,748 kg / 3,854 lb	29.4 kW, 142 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 300D holds about 199 theater seats, 81 banquet seats at rounds of 10, or 56 classroom seats. Back row in theater is roughly 7.6 m from the downstage edge; the previz checks whether the bottom of the wall clears the heads in front.

Other rooms at Spokane Convention Center

Exhibit Hall A-D105.6 x 105.6 m (346 x 346 ft) · 9.1 m ceiling
Exhibit Hall A49.4 x 64 m (162 x 210 ft) · 9.1 m ceiling
Exhibit Hall C64.6 x 42.7 m (212 x 140 ft) · 9.1 m ceiling
Ballroom 100ABC48.5 x 48.5 m (159 x 159 ft) · 3.7 m ceiling
Exhibit Hall B36.6 x 54.9 m (120 x 180 ft) · 9.1 m ceiling
Exhibit Hall D (Riverside Lobby)33.5 x 40.2 m (110 x 132 ft) · 9.1 m ceiling
Junior Ballroom 111ABC35.3 x 35.3 m (116 x 116 ft) · 5.2 m ceiling
Junior Ballroom 300ABCD23.8 x 45.7 m (78 x 150 ft) · 6.1 m ceiling
Exhibit Hall B124.4 x 35.4 m (80 x 116 ft) · 9.1 m ceiling
Exhibit Hall B224.4 x 35.4 m (80 x 116 ft) · 9.1 m ceiling
Ballroom 100B21.6 x 39 m (71 x 128 ft) · 3.7 m ceiling
Ballroom 100A22.9 x 34.7 m (75 x 114 ft) · 3.7 m ceiling

Published dimensions (source), fetched 2026-09-04. All rooms at Spokane Convention Center · Venues in Spokane