Cortizo COR Vision Aluminium Sliding Doors | Altegra

Cortizo COR Vision Sliding Door System

These sliding door boasts an ultra slimline frame that gives an almost frame free appearance. 

Cortizo Cor Vision Sliding Patio Doors allow maximum light with the minimum aluminium visibility offering a glass surface of 94%.

This new breed of sliding doors focuses on as little visible frame as possible, these exceptional aluminium doors feature super slimline frames and a sightline of just 20mm between the door panels for a 'frameless effect'.

  • Super slimline frames - over 90% of aperture is glass.
  • Slim sightlines between glass doors of just 20mm.
  • Maximum glazing thickness of 30mm
  • Huge sizes of up to 2.5m x 3m per door!
  • Embed the bottom, top and lateral frames within the wall  for a ‘frameless effect’.
  • Possibility of sash encounters at 90° corner doors without a mullion and pocket system.
  • Exceptional levels of thermal insulation, weather resistance and security.
  • Wide range of colours: powder coated finishes (RAL, mottled and rough), wood effect powder coating, anti-bacterial powder coating and anodised. Profiles can be finished with different internal and external colours.


Want to add Cortizo Corvision Sliding Doors to your product range?

Cortizo Cor Vision Sliding Door
Cortizo Cor Vision Sliding Door
  • Technical Specifications

  • Product Details

  • Finishes

  • Openings

Average U values

Transmittance Uw from 1,3 (W/m²K)


Maximum dimensions/sash  width 2500 mm
Maximum dimensions/sash  height 3000 mm


Frame Sections

Frame Depth 116 mm 

3 Rails - 182mm

Sash 37mm

Profile thickness door 1.7 mm
Polyamide strip length 16 to 24mm
Maximum weight per sash  320kg
 Glazing  30mm 



Maximum acoustic insulation Rw=41 dB
Air permeability (EN 12207): CLASS 4
Water tightness (EN 12208): CLASS 7A
Wind resistance (EN 12210): CLASS C5
Reference test: 1,23 x 1.55 m. 1 sash + 1 fixed light



  • Sashes of up to 320 kg weight allow maximum dimensions of 2500 (W) x 3000 (H) mm
  • Interlock profile 20 mm
  • PAS24 accredited
  • Sliding of 2, 3, 4 & 6 sashes
  • Possibility of 1 rail (1 sash+ 1 fixed)
  • Possibility of  interior and exterior corner at 90º without mullion 
  • Wide selection of powder coated finishes (RAL, mottled and rough) and possibility of dual colour systems.  Wood effect powder coating, anti-bacterial coating and anodised.

Sliding possibility of 1, 2 or 3 rails. Possibility of interior and exterior corner at 90º without mullion.




Standard Colour Range

TRAFFIC WHITE - RAL 9016: Offering a more traditional look to match existing window frames.

Anthracite Grey - RAL 7016: The classic aluminium bifold door colour for that ‘Grand Designs’ look.

Jet Black - RAL9015: Perfect for a more sophisticated, contrasting colour option or a more contemporary finish.

Dual Colour Range

White / Anthracite

Anthracite / White

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