Phone booth with maximum absorption

The COUST box is an open phone booth where one can make calls without disturbing colleagues. It is constructed with a sturdy aluminum frame, features a stylishly finished work surface, and is mounted on the wall.

The unique filling of this phone booth ensures maximum sound absorption. The acoustic material is of very high quality and optimally structured. Each side of our phone booths is fitted with an MDF sound stopper on the back, which reflects sound. This way, the sound is absorbed not once, but twice!

The efficiency of the COUST box is remarkable: it reduces sound by 15 dB. This means that the sound source (in this case, the speaker) seems five times farther away. With this, the COUST box firmly holds a leading position among open phone booths.

Product specifications

Product specifications

Acoustic properties (core)

Thickness 40 mm + MDF-sound stopper

  • An acoustic core of 40 mm thick and the MDF sound stopper absorb all frequencies of human voices.

Density 80 kg/m3

  • High density = lots of mass
  • High density + thickness of 4cm = important for absorption capacity

Sound reduction 15dB

  • This means that sound seems 5 times further away


Aluminium frame

  • Sturdy frame made from own design
  • 52mm thick
  • Powder-lacquered and so scratch-free
  • Anthracite-black RAL 7021, RAL 9016 (traffic white), RAL 9010 (warm white), RAL 9006 (aluminium grey)


  • Covers can be stretched tight
  • Covers are replaceable

End cover/tensioning fabric in Trevira CS


  • Covers the acoustic filling
  • Provides a smooth, even effect
  • Trevira CS quality

Tensioning fabric in Trevira CS

  • Stable branded fiber
  • 100% polyester
  • Flame-retardant
  • Not affected by variations in temperature and humidity: cover remains stretched flat


  • Work surface made of melamine with a veneer plywood edge: 76 cm x 3 cm x 20 cm (WxHxD)

Dimensions and Weight

  • External dimensions: 86 cm x 105 cm x 65 cm (WxHxD)
  • Internal dimensions: 76 cm x 100 cm x 60 cm (WxHxD)
  • Weight: 23.4 kg

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We deliver and install at the same price throughout Belgium and Northern France.

T+32 9 296 46 10

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