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Aluminium Sliding Door 3 Sash

Experience luxury and performance with our Aluna 3 panel aluminium sliding doors, expertly crafted to combine elegance, strength, and functionality. Designed to flood interiors with natural light, these sliding patio doors feature ultra-slim 25mm interlocks for panoramic views and a sleek, modern finish.

Perfect for large openings up to 2.5m x 2.7m per sash, Aluna sliders deliver exceptional thermal efficiency (U-values as low as 1.4 W/m²K), superior weather resistance, and advanced security as standard. With smooth, soft-close technology and marine-grade durability, our aluminium sliding patio doors are the ultimate choice for contemporary homes seeking beauty, performance, and seamless indoor-outdoor living.

 

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Fancy something different? We also offer different sash sizes:

From £2,842.82£2,369.02 Inc. VATEx. VAT

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Experience luxury and performance with our Aluna 3 panel aluminium sliding doors, expertly crafted to combine elegance, strength, and functionality. Designed to flood interiors with natural light, these sliding patio doors feature ultra-slim 25mm interlocks for panoramic views and a sleek, modern finish.

Perfect for large openings up to 2.5m x 2.7m per sash, Aluna sliders deliver exceptional thermal efficiency (U-values as low as 1.4 W/m²K), superior weather resistance, and advanced security as standard. With smooth, soft-close technology and marine-grade durability, our aluminium sliding patio doors are the ultimate choice for contemporary homes seeking beauty, performance, and seamless indoor-outdoor living.

Fancy something different? We also offer different sash sizes:

Size

2400 x 2100, 2400 x 2300, 2600 x 2100, 2600 x 2300, 2800 x 2100, 2800 x 2300, 3000 x 2100, 3000 x 2300, 3200 x 2100, 3200 x 2300, 3400 x 2100, 3400 x 2300, 3600 x 2100, 3600 x 2300, 3800 x 2100, 3800 x 2300, 4000 x 2100, 4000 x 2300, 4200 x 2100, 4200 x 2300, 4400 x 2100, 4400 x 2300, 4600 x 2100, 4600 x 2300, 4800 x 2100, 4800 x 2300, 5000 x 2100, 5000 x 2300, 5200 x 2100, 5200 x 2300, 5400 x 2100, 5400 x 2300, 6400 x 2100, 6400 x 2300

Trickle Vents

No Trickle Vents, 1 Trickle Vent, 2 Trickle Vents, 3 Trickle Vents

Configuration

DS06, DS07, DS08

External Colour

Anthracite, Black, White

Internal Colour

Anthracite, Black, White

Cill

230mm Cill

Handle Colour

Black, White

Glass

Clear Toughened

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Sleek Profile Options

The Aluna sliding patio door system offers stunning panoramic views through slim, modern profiles. Choose from mono, double, or triple track configurations with 42mm and 34mm bottom rails. Available in double or triple glazing, the system supports up to six panes in sliding or lift-and-slide options for ultimate flexibility and style.

Design Your Aluminium Sliding Door

The Power of Aluna

Experience the exceptional design and performance of Aluna sliding doors, combining style, strength, and innovation. These slimline aluminium sliders deliver unmatched functionality and aesthetics for any modern home.

  • Designed for large openings up to 2.5m x 2.7m per sash
  • Ultra-slim 25mm interlock for panoramic views
  • Glazing options up to 32mm thick
  • Supports 1–11 panel configurations
  • Thermal efficiency as low as 1.4 U W/m²K
  • Advanced noise reduction
  • PAS24 security certified for peace of mind
  • Smooth soft-closing technology
  • Built with marine-grade aluminium
  • Enhanced weatherproof seals and treadplates

Design Your Aluminium Sliding Door

Colour Options

The Aluna sliding patio door system is available in any RAL colour to suit your design vision. Standard finishes include Grey 7016 (Matte), Black 9005 (Matte), White 9016 (Gloss), Grey on White, Black on White, Textured Grey 7016, and Mill Finish, offering stylish versatility for any property aesthetic.

Design Your Aluminium Sliding Door

Technical Performance

Experience superior engineering with Aluna aluminium sliding patio doors, delivering market-leading performance and durability:

  • Maximum sash size up to 2.5m x 2.7m per panel
  • 250kg maximum sash weight per leaf
  • Ultra-slim 25mm interlock for uninterrupted views
  • Double track outer frame width: 120mm / Triple track: 183mm
  • PAS24 compliant for enhanced security
  • U-values as low as 1.4 W/m²K, DER rated C, Part L compliant
  • Weather tested to BS6375 Part 1:2009
  • Factory marine-grade powder coating to Qualicoat standards

Special Features: Optional multi-locking system, stainless steel lamina rails, thermal PVC rail cover, EPDM rubber gaskets, and dual water drainage channels.

Design Your Aluminium Sliding Door

Frequently Asked Questions

The Aluna sliding patio door system is a stunning, high-performance addition to any home. Designed with super-slim aluminium profiles for maximised light and uninterrupted views, these luxury sliding doors combine thermal efficiency, strength, and contemporary style to elevate both modern and traditional properties.

Yes. The Aluna aluminium sliding doors deliver exceptional insulation performance with U-values as low as 1.4 W/m²K, helping to retain warmth and reduce energy costs all year round.

The Aluna sliders are available in five standard finishes – White (RAL 9016), Anthracite Grey (RAL 7016), and Black (RAL 9005), plus two dual-colour options – Grey Out/White In and Black Out/White In. For bespoke projects, any RAL colour can be supplied on request.

The Aluna sliding patio door system allows for market-leading sash sizes up to 2.5 m x 2.7 m, with a maximum sash weight of 250 kg per door leaf — perfect for large panoramic openings.

Yes. You can choose between double-track or triple-track configurations, allowing flexible opening options to suit your property layout and design preferences.

The Aluna sliding door system can accommodate up to six sliding panes on a triple track, or fewer for smaller openings, providing a completely customisable setup.

Yes. The same Aluna sliding door profile can be configured as either an inline slider or a lift-and-slide system, simply by changing the internal gearing. This makes the system both versatile and efficient to fabricate and install.

Yes. The Aluna system supports both double-glazed and triple-glazed units, providing the flexibility to balance energy performance, sound insulation, and budget requirements.

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