KLS aluminium patio doors offer a full width clear opening to your terrace and garden. With the trend for large expanses of glass that give unrestricted views to the outside, the patio door
delivers this better than any other type of door on the market.

Viewed from inside or outside, the KLS aluminium patio door will transform the look of your room as well as your home.

  • Mechanical corner joint for ease of fabrication
  • Variation of glass thickness’ available
  • Doors up to 400 kg available
  • Lift and slide system for advanced security
  • Outstandingly smooth & quiet sash movement
  • Large expanses of glass for uninterrupted views
  • Space saving horizontal sliding action
  • Internally beaded for security
  • Hardware designed to ensure ease of use
Technical information
Air permeability* Class 3
Water tightness* Class 4A
Wind load* Class C2
Thermal insulation Uw** Up to 1,4 W/m2K


* Air/Water/Wind tests according to standard weather (EU test)

** Please note: U-Values are dependant on size and glass U-Values.

Maximun leaf size: 3300x3200 mm

Maximum weight (lift and slide): 400 kg

Maximum weight (slide only): 220 kg

Maximun glazing: 39,5 mm

Polyamide: 24 mm


KLS Lift & Slide patio doors allow multiple configurations to include Bi-part. This system gives excellent security and weathering, making it ideal for use in exposed areas or where security is a major consideration.


KLS incorporate mechanical cleats and chevrons allowing quick and easy fabrication and continuity of corner quality.


KLS is a thermally efficient patio door which gives a Uw value of 1,4 W/m2K


KLS patio door has a robust design. It allows the construction of very large leaf sizes up to 3300×3200 mm high. In addition, this system has bespoke high specifications, adjustable and heavy duty rollers, which enables units weighing up to 400 kg to be accommodated and offers an outstandingly smooth and quiet action.

Technical manual

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