Cortizo COR Vision Plus | Slimline Aluminium Sliding Doors

The Cortizo COR Vision Plus Sliding door is a minimalistic sliding system specifically suitable for large dimensions and with its structurally bonded glass design, allows for the maximum luminosity with a minimum visible section of aluminium. Its extraordinary thickness capacity allows the placement of glass panes up to 54mm thickness, guaranteeing the best acoustic and thermal performance. This heavy duty version of our premium COR vision sliding door allows for triple glazing and larger size dimensions, while still providing almost as thin sightlines of 25mm.

U-value of 0.9 W/m²K
56mm maximum glazing thickness
Double and triple glazing options available
25mm Sightlines
Sliding of 2, 4, or 6 sashes, and up to 4 rail configurations
Possibility of corner sash encounters of 90 degrees without mullions
Maximum sash width of 4000mm and height of 4000mm for a single pane
Maximum sash weight of 400kg

Modern oversized sliding doors with glass panels and black frames.

Aluminium sliding doors providing seamless indoor-outdoor transition in a contemporary living space.

Technical Specifications
Colours & Finishes

Technical Specifications

Maximum glazing thickness
56 mm
Opening possibilities
Sliding of 2, 4 & 6 sashes
Up to 4 rail configurations
1 sash + 1 fixed / 2 sashes + 1 fixed
Possibility of corner sash encounters at 90° without mullions
Pocket solution possibility 1,2,3, and 4 sashes
Sections
Frame 180 mm - 3 rails 278 mm
Sash 6 mm
Profile thickness
Door 2.0 mm
Polyamide strip length
Frame 40 mm / Sash 18/32 mm
Maximum dimensions/sash
Width (L) = 4000 mm
Height (H) = 4000 mm

Glass surface ≈ 14 m²
Maximum weight/sash
400 kg Manual
700 kg Motorised

Please consult regarding maximum weight and dimensions for other opening types

Finishes
Possibility of dual colour systems
Colour powder coating (RAL, mottled and rough)
Wood effect powder coating
Anti-bacterial powder coating
Anodised

Glass Options

All our oversized sliding doors are available with a choice of high-performance glazing to suit your project requirements:

Double-glazed sealed units — standard specification for thermal efficiency
Triple-glazed units — enhanced thermal and acoustic performance
Acoustic laminated glass — for noise reduction in urban and roadside locations
Solar control glass — reduces heat gain and glare while maintaining natural light

We specify the optimal glass configuration for each project based on thermal performance, acoustic requirements and Building Regulations compliance.

Cross-section of an oversized sliding door frame with multiple glass panels.

Colours & Finishes

Our oversized sliding doors are available in three premium finish categories — anodised, matt RAL and textured RAL — with dual-colour options allowing a different finish inside and outside. Woodgrain foil finishes are also available for a natural timber-effect appearance.

Popular RAL Colours

RAL 7016 Anthracite Grey
RAL 9005 Jet Black
RAL 7021 Black Grey
RAL 9010 Pure White
RAL 9001 Cream White
RAL 7012 Basalt Grey
RAL 7022 Umbra Grey
RAL 6009 Fir Green
RAL 8014 Sepia Brown

Any standard RAL colour is available to order. Slimline sliding doors are often specified with a matt or textured finish in darker tones to maximise the contrast between frame and glass.

FAQs About Cortizo COR Vision Plus Sliding Doors at Direct Trade Windows

What makes the Cortizo COR Vision Plus unique?

It offers ultra-slim 25 mm sightlines for a sleek, modern look while maximising glass area for uninterrupted panoramic views.

What are the main visual differences between COR Vision and COR Vision Plus?

COR Vision has a slim 20 mm central sightline, while COR Vision Plus offers a slightly wider 25 mm sightline with an impressive 94% glass-to-frame ratio for a seamless appearance.

Is it energy-efficient?

Yes – it achieves Uw values from 0.9 W/m²K, providing excellent thermal insulation for year-round comfort.

Can it be customised to my design?

Absolutely. You can choose from a wide range of colours, dual-colour options, anodised finishes, and multiple track configurations.

What type of glass can it take?

It accommodates glazing up to 54 mm thick, allowing for double or triple-glazing for enhanced insulation and soundproofing.

Is it suitable for coastal or exposed locations?

Yes – the system is tested to Class 4 air permeability, Class E1200 water tightness, and Class C5 wind resistance for robust performance in harsh conditions.

How smooth is the sliding action?

The COR Vision Plus uses precision-engineered stainless steel rollers for effortless opening and closing, even with very large panels.

Can I have a corner opening without a post?

Yes – it offers a 90° corner configuration with no fixed corner post for uninterrupted transitions between indoor and outdoor spaces.

How large can the sliding panels be?

Each panel can be up to 4 metres wide and 4 metres high, allowing for expansive glazed openings.

Other Sliding Doors

Aluminium sliding doors for seamless indoor-outdoor living.

Aluminium Sliding Doors

Cortizo COR Vision Plus Sliding Door