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AK 3+4 PET Felt Room Dividers Designed by De Vorm


AK 3 and AK 4 are two functional room dividers with distinction in height. The dividers create flexible walls, bringing structure to open spaces. AK 3 + 4 can be placed freestanding, ceiling-suspended or connected with hinges. The choice is yours. With outstanding acoustic performance and a variety of bespoke options, the AK family offers a universal solution for open-plan interiors.

Choose your own

The room dividers come in 2 sizes - 160 and 180 cm high, both available in a hanging and standing format. You can choose from 11 PET Felt colour blends. The hanging AK 3+4 has adjustable cords. For the standing version, you can also customise the feet colour.  

Acoustic performance 

Thanks to PET Felt and acoustic filling, the AK 3 and AK 4 room dividers offer sound-dampening properties. The acoustic values may vary depending on the space and application of the panels. Find the full report on their acoustic performance in the Downloads
PET Felt colour blends 

AK 3+4 in projects

AK 3 and AK 4 are suitable for a wide range of applications in offices, co-working zones and open spaces. We are always curious to see our products in completed interiors. Have you seen or used the AK dividers in any projects? Please, let us know

PET Felt Technology

AK 3+4 room dividers are made from PET Felt - a sustainable and durable material manufactured from recycled plastic bottles.

PET Felt is a soft, though strong material with a great acoustic performance. It is both recycled and recyclable. The PET Felt technology allows a number of production steps to be reduced to one smart 3D pressing technique. 
The AK 3+4 are also easy to disassemble and recycle after long-time use.
De Vorm icons website PET bottles2
De Vorm icons website Recycle2
De Vorm icons website Customisable design2
De Vorm icons website Acoustic Performance2



  • Shell
    PET Felt
  • Filling
    Honeycomb paper core
  • Legs
    Powder-coated steel (standing version)

Technical details

  • Height
    AK 3 - 160 cm
    AK 4 - 180 cm
  • Weight
    AK 3 - 8.3 kg
    AK 4 - 9.3 kg

PET Felt

  • Martindale
  • Pilling
  • Care & Maintenance
    Please see our Care & Maintenance Guide here


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