Aluminium Sliding Doors (Cortizo COR Vision Plus)

Aluminium Sliding Doors
(Cortizo COR Vision Plus)

Premium large-format sliding doors with 25mm sightlines, exceptional thermal performance, and panels up to 4 metres.

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sd20 plus

Product Overview

The COR Vision Plus (also known as our SD20 Plus) is a high-capacity sliding door system with 25mm central sightlines, panels up to 4 metres square, and thermal performance down to 0.9 W/m²K. It’s built for large-scale openings in contemporary projects where thermal efficiency and light transmission both need optimising.

The system accommodates glazing from 36mm to 56mm thick, allowing for triple-glazed or acoustic units. Manual operation supports panels up to 400kg; motorised systems extend capacity to 700kg. The track can be fully integrated into the floor structure, creating a flush threshold with no step-over. If you’re specifying doors for a substantial opening and want minimal frames with strong thermal values, this delivers both.

cor vision plus cutaway
sd20 plus wide

Features

25mm central sightlines

Narrow meeting point between panels keeps frames minimal and glazing dominant

Up to 94% glazed surface

Fully embedded perimeter frames maximise visible glass area

Exceptional thermal performance

U-values down to 0.9 W/m²K meet and exceed modern building standards

Flexible track configurations

Available in single, double, triple, or four-track arrangements

Large panel capacity

Panels up to 4 metres in height or width, accommodating 400kg manual or 700kg motorised

Enhanced acoustic insulation

Reduces external noise by up to 43dB

cor vision plus flush threshold
cor vision plus technical drawing

Design and Configuration Options

Track configurations range from single to four-track layouts, depending on the width of the opening and how many panels you need. Panels can all be sliding, or you can specify a combination of fixed and operable sections.

90° corner junctions are possible, with no central post required where two runs meet. When opened, this creates a continuous corner opening. Pocket installations let panels slide into the wall cavity, so they disappear entirely when the doors are open.

For heavier panels or larger installations, motorisation is available. Electric operation extends the weight capacity to 700kg per panel. The track can be embedded into the floor or fully integrated flush with the floor surface, creating a level threshold suitable for wheelchair access.

Finishes include RAL powder coating, anodised, textured, and wood-effect options. Dual-colour configurations allow you to specify different finishes for internal and external faces.

Technical Details

Frame & Glazing

  • Frame depth: 180mm (double track), 278mm (triple track)
  • Panel depth: 69mm
  • Central sightline: 25mm
  • Glazing thickness: 36–56mm
  • Profile thickness: 2.0mm
  • Thermal break: 18/32/40mm polyamide

Panel Capacity

  • Maximum width: 4000mm
  • Maximum height: 4000mm
  • Maximum weight: 400kg (manual), 700kg (motorised)
  • Maximum glazed surface: 14m²

Performance

  • U-value: From 0.9 W/m²K
  • Acoustic insulation: Up to 43dB
  • Air permeability: Class 4
  • Water tightness: Class 7A / 9A
  • Wind resistance: Class C3 / C4

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