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Create a stable and level wooden deck – even on uneven surfaces

The Knudsen Kilen terrace system is designed for supporting wooden or composite decks. It easily compensates for uneven or sloping surfaces, providing a stable, level, and attractive terrace surface.

The terrace base stabilizes the support and also protects sensitive surfaces such as roofing felt. The system is easy to install, user-friendly, and built to withstand Nordic climates. The support height is flexible and adjustable from 27 to 287 mm.

All components of the Knudsen Terrace System – except the terrace base – are made from 100% recycled material sourced from the food industry, making the system both strong and environmentally friendly.

Unlike traditional solutions such as wooden wedges, plastic wedges are unaffected by moisture, cold, or mold. Knudsen Kilen products also have a documented lifespan of at least 75 years.

An EPD (Environmental Product Declaration) is available for all products, allowing the system to be used in sustainable, certified construction projects.

All Knudsen Kilen products designed for blocking up wood and composite decking on joists

  • Knudsen Terrace Kit

  • Knudsen Terrace Raiser

  • Knudsen Terrace Wedge

Modular building of wooden and composite terraces
Adjustable pedestals for wooden and composite terraces
Leveling of terraces on stable and pressure-resistant surfaces and roofing felt
terrace film

Knudsen Terrace System
Information film

Terrace leaflet

Knudsen Terrace System
Leaflet (danish)

installation instruction

Knudsen Terrace System
Installation instruction (danish)

suppliers

Knudsen Terrace System
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EPD Verified
80% range in recycled raw material
75 års minimum levetid
Danish design & quality

Knudsen Terrace System – simple, easy, and flexible modular terraces

Knudsen Terrace System is used for the modular building of terraces using joists made from timber or a composite material. The Knudsen Terrace System has been uniquely adapted for the Scandinavian climate and is available in a range of flexible working heights from 27-287 mm.

terrace system-working heights
terrace system-sectional view

The system balances out gradient differences on uneven or sloping surfaces

terrace system-uneven surfaces

An easy-to-understand information film can be accessed simply via QR code or the website

terrace system-installation instruction

Installation instructions are included in the pack.

terrace system-packaging

An informative pack containing modules for approx. 10 m2 terrace

Clear environmental and design advantages of the Knudsen Terrace System

  • Load capacity of up to 1,250 kg per m2
  • Can be used on any stable foundations as well as roofing felt
  • Produced from 100% recyclable material
  • Resistant to all types of weather
  • UV-resistant and can handle temperatures from -40°C to +70°C
  • Not affected by moisture, rot or fungus

The Knudsen Terrace System is frost-proof and weather-resistant to handle the Scandinavian climate.

Contact Knudsen Kilen for more information

Knudsen EPD

terrace system-old terrace
terrace system-new terrace

Transform your tired old terrace into the perfect outdoor space


The terrace system can be used on most stable and pressure-resistant surfaces as well as on roofing felt.

The terrace sole stabilises the modular structure on uneven foundations and protects vulnerable surfaces.

terrace system-protect vulnerable surfaces
EPD Verified
80% range in recycled raw material
75 års minimum levetid
Danish design & quality