The INADOOR 55 is a metal acoustic door with 44 dBA of airborne noise insulation. There are two models of INADOOR 55 doors: open frame (A – helical hinges – no bottom step), (B – straight hinges – no bottom step – guillotine closure) and closed frame (C – with bottom step).
This type of door is specially designed for noisy activities: party rooms, dance halls, flamenco venues, theaters, music rooms, conservatories, noisy enclosures, installation rooms, machine rooms.