We manufacture exceptionally large fire-resistant acoustic doors up to a maximum of Rw 70dB / STC 70 and up to 120 minutes fire resistance.  Large format doors are often referred to in international markets as: acoustic sliding doors, soundproof doors, noise proof doors, studio doors, hermetically sealed doors, elephant doors and guillotine doors.

Clark Door has built a worldwide reputation for supplying high quality, reliable acoustic doors to the entertainment industry, film studios, music venues, theatres, cultural centres, R&D facilities, manufacturing and many other industries requiring specialist, sound insulating and acoustic fire rated doors.

With over 40 years of independent acoustic test data, including laboratory tests to ISO717 and on-site acoustic tests, we manufacture a wide range of door types with required sound insulation. Available up to Rw 58dB on a single soundproofing door and a higher attenuation with combination soundproof doors.