N426a at McCormick Place

Published dimensions

N426a is 12 x 18.2 m (39 x 60 ft), 218 m² (2,351 sq ft), with a 5.3 m (18 ft) ceiling.

Plan view

LED wall that fits

Under a 5.3 m ceiling with 1.5 m trim and 0.3 m clearance you get 7 rows of 500 mm tile flown. Along the 18.2 m wall a Absen PL2.5 Plus V2 wall runs 29 x 7 (5800 x 1400 px, 1,583 kg, 32.5 kW).

Panel	Pitch	Wall (cols x rows)	Size	Resolution	Weight	Power (max)
Absen KLCOB 0.78	0.78 mm	24 x 10 = 240	14.4 x 3.4 m	18432 x 4320	1,080 kg / 2,381 lb	21.2 kW, 102 A @ 208 V
Absen PL2.5 Plus V2	2.5 mm	29 x 7 = 203	14.5 x 3.5 m	5800 x 1400	1,583 kg / 3,491 lb	32.5 kW, 156 A @ 208 V
Absen PL3.9 Plus V2	3.9 mm	29 x 7 = 203	14.5 x 3.5 m	3712 x 896	1,583 kg / 3,491 lb	28.4 kW, 137 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, N426a holds about 298 theater seats, 122 banquet seats at rounds of 10, or 84 classroom seats. Back row in theater is roughly 11.2 m from the downstage edge; the previz checks whether the bottom of the wall clears the heads in front.

Other rooms at McCormick Place

W375/Skyline146.6 x 63.6 m (481 x 209 ft) · 3.1 m ceiling
S100/Grand45.4 x 71.9 m (149 x 236 ft) · 7 m ceiling
E354/Lakeside91.3 x 33.2 m (300 x 109 ft) · 14.6 m ceiling
W375e42.2 x 60.1 m (138 x 197 ft) · 3.1 m ceiling
E354a54.1 x 45.7 m (177 x 150 ft) · 14.6 m ceiling
E354b54.1 x 45.7 m (177 x 150 ft) · 14.6 m ceiling
S406/Vista45.4 x 47.3 m (149 x 155 ft) · 10.6 m ceiling
W375c27.4 x 63.6 m (90 x 209 ft) · 12.1 m ceiling
W375d27.4 x 63.6 m (90 x 209 ft) · 12.1 m ceiling
W375b27.3 x 63.6 m (90 x 209 ft) · 3.1 m ceiling
S100bc45.5 x 36 m (149 x 118 ft) · 7 m ceiling
S100a45.1 x 35.9 m (148 x 118 ft) · 7 m ceiling

Published dimensions (source), fetched 2026-09-04. All rooms at McCormick Place · Venues in Chicago