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Double-pane sliding doors.

Double-pane is the canonical Maxlight sliding configuration: two equal panels of glass, one fixed and one sliding, on two parallel tracks in an ultra-slim thermally broken aluminium frame.

The two-panel arrangement is the right choice when the brief is for one large opening and one large unobstructed view, on an elevation broadly between three and five metres wide. The sliding panel runs left or right of the fixed panel — the architect specifies the direction at design stage so the fixed panel sits where the design wants the line of sight to remain glazed permanently.

Mechanically the system is the simplest of our sliding configurations: one moving panel, one set of rollers, a single track of weather seal between fixed and sliding. The simplicity translates into a smaller part count to fail and a slightly tighter weather class than the larger triple-pane configuration. Where the design needs more than half-elevation opening, triple-pane is usually the next step up; where the design needs symmetry, centre-parting is the right call instead.

The thermally broken aluminium frame uses our standard slim profiles — perimeter and meeting-rail sightlines as published on the parent system page. Glazing is double-glazed argon-filled IGU as standard, with triple-glazed builds available for projects targeting Future Homes Standard or Passivhaus performance. PAS 24 security upgrade adds laminated glazing and hardened locking hardware without changing the visible aluminium.

When to choose this.

  • 01

    Pick double-pane when

    the elevation is roughly three to five metres wide, the brief calls for one fixed view and one sliding opening, and the asymmetric reading is acceptable.

  • 02

    Consider triple-pane instead when

    the elevation is wider (five to nine metres) or the brief needs more than half-elevation opening with no fixed panel.

  • 03

    Consider centre-parting instead when

    the design wants a symmetrical four-panel reading where the doors open from the middle outwards.

Specification.

Sub-system specification
SpecificationValue
ConfigurationOne fixed, one sliding — two-track
Frame sightlines20 mm centre, 28 mm perimeter

See parent system page

Glazing build-up28 mm IGU standard, 44 mm triple optional
U-value (whole-window)1.2W/m²K
Air permeabilityClass 4

BS EN 12207

Water tightnessClass E1200

BS EN 12208

Wind load resistanceClass C5

BS EN 12210

Maximum panel size3.5 × 3.0m

Frequently asked questions

  • What colours are available for your products?

    We offer the full RAL Classic colour range (216 colours), giving you complete flexibility to match your design vision. Whether you’re looking for bold contemporary tones or subtle architectural finishes, we can accommodate your requirements.

  • Do you offer anodised finishes?

    Anodised finishes are available on request. Please speak to our team to discuss options and suitability for your project.

  • What locking options are available, and can they be colour matched?

    Our doors are fitted with high-quality locking systems, including bottom locks (non-PAS 24) and PAS 24-rated side locks. While the lock barrels are not colour matched, the escutcheons (visible lock surrounds) can be finished to match your frame colour for a seamless look.

  • What security rating do your doors have?

    Our systems can be configured with PAS 24-rated side locks, providing enhanced security for residential applications.

  • What security certification do you offer?

    We offer systems that comply with PAS 24, a recognised UK standard for enhanced security performance.

  • Are your warranties transferable?

    Our warranties are property-based rather than person-based, meaning they remain valid if ownership of the property change

  • Can I view your products in a showroom?

    We offer a virtual showroom experience, which can be arranged through your sales contact.

  • Can I visit in person?

    Yes, visits can be arranged by appointment at our showroom at 333A Western Avenue, London, W3 0BE

  • What are your typical lead times?

    Our process is carefully structured to ensure precision and quality: - Survey Stage: Approximately 1 week to carry out a site survey, provided the site is fully prepared. We’ll supply clear guidelines in advance. - Design & Drawing Stage: Around 2 weeks (or up to 3 weeks for more complex projects such as glass boxes) from survey completion and receipt of all required technical details. - Manufacture & Installation: Approximately 8 weeks from final approval of drawings, with installation scheduled shortly after. Your project timeline will always be confirmed by your sales contact based on scope and complexity.

  • Do you offer bi-fold doors?

    We specialise in premium glazing systems that prioritise longevity and performance. Bi-fold doors typically require more maintenance due to their multiple moving parts and top-hung weight distribution. For this reason, we focus on alternative systems that offer cleaner aesthetics, smoother operation, and reduced long-term maintenance.

  • Will you liaise with my architect or builder?

    Absolutely. We regularly collaborate with architects, builders, and project teams to ensure your design is delivered exactly as intended.

  • What areas do you cover?

    We operate across the whole of the United Kingdom.

Performance and assurance

Certified, documented, project-specific.

Glass U-value

1.0 W/m²K (glass / centre-pane figure)

Whole-window and project-specific thermal performance varies by configuration.

Warranty

  • 10 years workmanship from installation
  • 10 years on double-glazed units against hermetical seal failure (glass breakage not covered)
  • 10 years on powder-coated aluminium
  • 5 years on moving parts and accessories

Two equal panels of glass, one fixed, one sliding. The simplest expression of an ultra-slim sliding system, and the right call for most rear-elevation extensions in the three-to-five-metre width band.