S405a at McCormick Place

Published dimensions

S405a is 10.5 x 19.8 m (34 x 65 ft), 208 m² (2,238 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 19.8 m wall a Absen PL2.5 Plus V2 wall runs 31 x 7 (6200 x 1400 px, 1,693 kg, 34.7 kW).

Panel	Pitch	Wall (cols x rows)	Size	Resolution	Weight	Power (max)
Absen KLCOB 0.78	0.78 mm	26 x 10 = 260	15.6 x 3.4 m	19968 x 4320	1,170 kg / 2,579 lb	23 kW, 111 A @ 208 V
Absen PL2.5 Plus V2	2.5 mm	31 x 7 = 217	15.5 x 3.5 m	6200 x 1400	1,693 kg / 3,732 lb	34.7 kW, 167 A @ 208 V
Absen PL3.9 Plus V2	3.9 mm	31 x 7 = 217	15.5 x 3.5 m	3968 x 896	1,693 kg / 3,732 lb	30.4 kW, 146 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, S405a holds about 275 theater seats, 112 banquet seats at rounds of 10, or 77 classroom seats. Back row in theater is roughly 12.8 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