The Portal Ballroom at IMPACT Exhibition and Convention Center

The Portal Ballroom is 33.5 x 33.5 m (110 x 110 ft), 1,122 m² (12,080 sq ft), with a 11.6 m (38 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 11.6 m ceiling with 1.5 m trim and 0.3 m clearance you get 19 rows of 500 mm tile flown. Along the 33.5 m wall a Absen A2 Pro wall runs 53 x 19 (8904 x 3192 px, 10,070 kg, 186.3 kW).

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, The Portal Ballroom holds about 2,307 theater seats, 943 banquet seats at rounds of 10, or 648 classroom seats. Back row in theater is roughly 26.5 m from the downstage edge; the previz checks whether the bottom of the wall clears the heads in front.

Other rooms at IMPACT Exhibition and Convention Center

• Challenger Hall 1-3244.9 x 244.9 m (803 x 803 ft) · 16 m ceiling
• Hall 5-8141.4 x 141.4 m (464 x 464 ft) · 21 m ceiling
• Hall 4105.7 x 105.7 m (347 x 347 ft) · 5 m ceiling
• IMPACT Arena (Concert Hall)63.2 x 63.2 m (207 x 207 ft) · 21 m ceiling
• Royal Jubilee Ballroom59.2 x 59.2 m (194 x 194 ft) · 14 m ceiling
• Sapphire 201-20652.9 x 52.9 m (174 x 174 ft) · 5 m ceiling
• Sapphire 101-11247.5 x 47.5 m (156 x 156 ft) · 3.8 m ceiling
• Sapphire 113-12045.2 x 45.2 m (148 x 148 ft) · 3 m ceiling
• Grand Diamond Ballroom44.7 x 44.7 m (147 x 147 ft) · 5.5 m ceiling
• Thunder Dome (Concert Hall)42.8 x 42.8 m (140 x 140 ft) · 11.5 m ceiling
• Jupiter Room 1-1334.8 x 34.8 m (114 x 114 ft) · 3.7 m ceiling
• Phoenix 1-633.6 x 33.6 m (110 x 110 ft) · 4.3 m ceiling

Published dimensions (source), fetched 2026-09-05. All rooms at IMPACT Exhibition and Convention Center · Venues in Nonthaburi