Acoustic Steel Door Plus

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Acoustidor Plus

Acoustidor leads the way in noise control. With certified noise reduction from 41dB to 56dB, when it comes to keeping sound in or noise out our ascoustically rated Acoustidor, can be configured to meet your need. Suitable for use in noise-sensitive environments, such as recording studios, generator rooms, cinemas, nightclubs and churches. Acoustidor is certified to EN ISO 140-3. With a leaf thickness of either 75mm or 100mm, this can be supplied in four versions, rated to 41dB, 47dB, 53dB and 56dB to meet your acoustic needs.

  • Fire Rating
  • Up to 3m high
  • Up to 56dB rating
Unique Range Features

World class steel doors
Trustpilot rated Excellent
1 year warranty
Easy fit doors

Download Tech Specs

Product Features

Leaf Thickness


Air Permeability

Air permeability class 4 according to EN 12207 and Class A1/A2 NENEN 12152. Water-tightness Class 8A in accordance with EN 12208.

Fire Resistance

Upgrade to Fire Rated tested to EN 1634-1

Strongdor Icons Acoustic
Acoustic Rating

Up to 56 dB

Further information


Manufactured from 2mm zintec steel formed to single rebated profile 100mm wide frame with additional rebate for flush lip. Double rebate frame available on request

Supplied inclusive of a powder coated finish in a standard colour. Full range of RAL and BS colours available.

Acoustidor sound insulating doors have a double-walled door leaf, made from galvanised steel sheeting. The doors contain interior insulation material, and are supplied complete with frame (made of 2mm sheeting) and fitted with a double-seal.

Acoustidor Drawing

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Strongdor Acoustidor TechSpec Thumbnail 23


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Standard Colours & Coatings

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Acoustidor Fitting, Safety and Maintenance Instructions

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Over 150 colours available

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