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Main Hall at Sibelius Hall

Published dimensionsLargest room

Main Hall is 42.8 x 42.8 m (140 x 140 ft), 1,832 m² (19,717 sq ft), with a 3.1 m (10 ft) ceiling.

Plan view

Shape approximate: the venue publishes area only, so this room is drawn as a square of equal area.

LED wall that fits

Under a 3.1 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 42.8 m wall a Absen PL2.5 Plus V2 wall runs 68 x 2 (13600 x 400 px, 1,061 kg, 21.8 kW).

Panel	Pitch	Wall (cols x rows)	Size	Resolution	Weight	Power (max)
Absen KLCOB 0.78	0.78 mm	57 x 3 = 171	34.2 x 1 m	43776 x 1296	770 kg / 1,696 lb	15.1 kW, 73 A @ 208 V
Absen PL2.5 Plus V2	2.5 mm	68 x 2 = 136	34 x 1 m	13600 x 400	1,061 kg / 2,339 lb	21.8 kW, 105 A @ 208 V
Absen PL3.9 Plus V2	3.9 mm	68 x 2 = 136	34 x 1 m	8704 x 256	1,061 kg / 2,339 lb	19 kW, 92 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, Main Hall holds about 3,884 theater seats, 1,588 banquet seats at rounds of 10, or 1,092 classroom seats. Back row in theater is roughly 35.8 m from the downstage edge; the previz checks whether the bottom of the wall clears the heads in front.

Other rooms at Sibelius Hall

Forest Hall31.6 x 31.6 m (104 x 104 ft) · 3.1 m ceiling
Carpenters Hall30 x 30 m (98 x 98 ft) · 3.1 m ceiling
Carpenter's Factory17.3 x 17.3 m (57 x 57 ft) · 3.4 m ceiling
Carpenter's Workshop17.3 x 17.3 m (57 x 57 ft) · 2.8 m ceiling
Kuusi14 x 14 m (46 x 46 ft) · 4.5 m ceiling
VIP Sauna Suite12.2 x 12.2 m (40 x 40 ft) · 5 m ceiling
Haapa9.8 x 9.8 m (32 x 32 ft) · 4.5 m ceiling
Honka/Pihlaja/Koivu6.5 x 6.5 m (21 x 21 ft) · 3.1 m ceiling

Published dimensions (source), fetched 2026-09-05. All rooms at Sibelius Hall · Venues in Lahti