Portland Ballroom 251 & 256-258 at Oregon Convention Center
Portland Ballroom 251 & 256-258 is 26.8 x 57.3 m (88 x 188 ft), 1,536 m² (16,529 sq ft), with a 8.5 m (28 ft) ceiling.
Open in 3D previzPlan view
LED wall that fits
Under a 8.5 m ceiling with 1.5 m trim and 0.3 m clearance you get 13 rows of 500 mm tile flown. Along the 57.3 m wall a Absen PL2.5 Plus V2 wall runs 91 x 13 (18200 x 2600 px, 9,227 kg, 189.3 kW).
| Panel | Pitch | Wall (cols x rows) | Size | Resolution | Weight | Power (max) |
|---|---|---|---|---|---|---|
| Absen KLCOB 0.78 | 0.78 mm | 76 x 19 = 1444 | 45.6 x 6.4 m | 58368 x 8208 | 6,498 kg / 14,325 lb | 127.8 kW, 614 A @ 208 V |
| Absen PL2.5 Plus V2 | 2.5 mm | 91 x 13 = 1183 | 45.5 x 6.5 m | 18200 x 2600 | 9,227 kg / 20,343 lb | 189.3 kW, 910 A @ 208 V |
| Absen PL3.9 Plus V2 | 3.9 mm | 91 x 13 = 1183 | 45.5 x 6.5 m | 11648 x 1664 | 9,227 kg / 20,343 lb | 165.6 kW, 796 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, Portland Ballroom 251 & 256-258 holds about 3,225 theater seats, 1,319 banquet seats at rounds of 10, or 907 classroom seats. Back row in theater is roughly 50.3 m from the downstage edge; the previz checks whether the bottom of the wall clears the heads in front.
Other rooms at Oregon Convention Center
- Exhibit Hall A-A1-B-C-D-E153.9 x 153.9 m (505 x 505 ft) · 9.1 m ceiling
- Exhibit Hall A1-B-C-D-E144.6 x 144.6 m (474 x 474 ft) · 9.1 m ceiling
- Exhibit Hall A-A1-B-C-D143.6 x 143.6 m (471 x 471 ft) · 9.1 m ceiling
- Exhibit Hall A1-B-C-D134.6 x 134.6 m (442 x 442 ft) · 9.1 m ceiling
- Exhibit Hall B-C-D-E134.6 x 134.6 m (442 x 442 ft) · 9.1 m ceiling
- Exhibit Hall B-C-D122.7 x 122.7 m (403 x 403 ft) · 9.1 m ceiling
- Exhibit Hall C-D-E122.7 x 122.7 m (403 x 403 ft) · 9.1 m ceiling
- Exhibit Hall A-A1-B-C120 x 120 m (394 x 394 ft) · 9.1 m ceiling
- Exhibit Hall C-D109.9 x 109.9 m (361 x 361 ft) · 9.1 m ceiling
- Exhibit Hall A1-B-C107.3 x 107.3 m (352 x 352 ft) · 9.1 m ceiling
- Exhibit Hall A-A1-B103.6 x 103.6 m (340 x 340 ft) · 9.1 m ceiling
- Exhibit Hall B-C93 x 93 m (305 x 305 ft) · 9.1 m ceiling
Published dimensions (source), fetched 2026-09-04. All rooms at Oregon Convention Center · Venues in Portland