Technical Specifications

Every Fluid X Sliding Door is tailored to its architectural context—crafted from the highest quality materials and finished to exacting standards. With options for motorisation, pocket integration, and open corners, it is as adaptable as it is striking.

Dimensions

  • Sightlines : 21mm

  • Max Leaf Weight: 600kg

  • Max Leaf Height: 5m

  • Max Area / Leaf: 12m²

  • Max Glass Thickness: 32-36mm

Features

  • Frame integrated handle

  • Completely hidden frames

  • 5 thermal breaks

  • Low-friction needle bearings

Options

  • Hidden Rail (HR21)

  • Motorisation (1-4 leaves)

  • Pocket

  • Corner

  • Curved Sliding Elements

  • Fly Screen

  • Multi-Point Lock

  • Micro-ventilation

Performance

  • Thermal Coefficient Uw : 1,1 W/m² K

  • Sound Insulation : Up to 41 dB

  • Water Tightness : Class 9A

  • Air Tightness : Class 4

  • Wind Tightness : Class C5

Configurations

1 sliding + 1 fixed

1 sliding + 1 fixed

2 sliding + 1 fixed

2 sliding + 1 fixed

2 sliding

2 sliding

4 sliding

4 sliding

3 Sliding / open corner

3 Sliding / open corner

4 sliding + 2 fixed

4 sliding + 2 fixed

2 sliding + 1 fixed

2 sliding + 1 fixed

6 sliding doors

6 sliding doors

5 Sliding / open corner

5 Sliding / open corner

Track

FD21 Exposed Rail (standard)

FD21 Exposed Rail (standard)

FD21HR Hidden Rail (optional)

FD21HR Hidden Rail (optional)

The Fluid X Sliding Door system is a seamless blend of innovation, clarity and architectural elegance.

Benefits

Designed to push the boundaries of minimalist design, it delivers floor-to-ceiling glass with ultra-slim 21mm sightlines and hidden thresholds, creating uninterrupted transitions between interior and exterior. With manual or motorised operation, and support for panels up to 5m high and 1000kg. Whether framing a view or defining a boundary, this system elevates the experience of space and light.

Expanding spaces both physically and visually.

Architecture

Its discreet profiles, concealed thresholds, and dynamic configuration options make it a powerful design tool—capable of expanding spaces both physically and visually.

Where Form Meets Horizon
The Fluid X Sliding Door is crafted for ambitious architectural schemes that demand visual lightness and structural strength. Whether applied to residential or commercial settings, it allows for wide, open expanses without visual interruption. From pocketing configurations that vanish into walls to corners that open freely, the system removes physical and conceptual barriers—inviting light, air and movement to shape the space.

Boundless Possibilities
The sliding panels can span up to 12m² each and glide effortlessly on high-performance rollers, even at extreme dimensions. With up to four tracks and multiple configurations—standard, pocket, curved, motorised, corner or hidden rail—The Fluid X Sliding Door accommodates the most dynamic layouts while maintaining a consistent architectural language. Every profile is designed with minimal expression, ensuring the glazing takes centre stage.

A language of calm minimalism

Design

Every detail of the Fluid X Sliding Door has been resolved to support a language of calm minimalism. From the flush handle to the invisible threshold, this system is defined not by what you see—but by what you no longer need to.

Refined Movement
Needle-bearing rollers enable a fluid, near-frictionless glide. Wheel systems are mounted to the mullion—not beneath the glass—enabling tall, narrow doors to perform smoothly. With floor-concealed thresholds and fully integrated locking, the entire system is engineered to appear as little as possible, while doing more than ever before.

Precision in Every Detail
A flush-fit colour-matched handle integrates into the profile, maintaining visual continuity. Unlike brush seals that degrade over time, the Fluid X Sliding Door uses durable, concealed gaskets between interlocking panels for a sleek, reliable finish. Its slim central mullion and virtually invisible frames maintain architectural intent—whether the doors are open or closed.

Exceptional thermal performance, weather resistance and long-term serviceability

Technology

The Fluid X Sliding Door is a system built not only for elegance but for endurance. Its technical capability underpins its visual lightness, offering exceptional thermal performance, weather resistance and long-term serviceability—all without compromising its minimalist aesthetic.

Engineered to Endure
The Fluid X Sliding Door supports glass up to 36mm thick and leaf weights up to 1000kg, all while meeting rigorous performance benchmarks: thermal insulation down to 1.1 W/m²K, sound insulation up to 41dB, and class-leading ratings for air (Class 4), water (Class 9A), and wind tightness (Class C5). Its ability to handle ±2mm glass tolerance per panel ensures consistent alignment and operation across large, multi-panel installations.

Serviceable, Adaptable, Timeless
Designed for longevity, all components—from locking keeps to rollers—are easily adjustable post-installation. Unlike conventional systems, The Fluid X Sliding Door avoids fixed packers and fragile screw points, making it not only more durable but also more serviceable. This makes it a long-term investment in architectural clarity, comfort, and performance.

Elegance and security, integrating exclusive multi-point locking systems for enhanced protection

Security

The Fluid X Sliding Door combines elegance and security, integrating exclusive multi-point locking systems for enhanced protection without compromising on aesthetics. Each system features discreetly designed locking mechanisms, including a side lock integrated within the handle profile, as well as custom options for adjacent or alternating vents. Whether using an integrated locking system or magnetic activation, these solutions ensure smooth, effortless operation while maintaining a sleek, minimalist appearance.

For projects requiring cylinder locks on sliding openings, bespoke profile options are available to meet specific security needs. In addition to manual operation, motorised systems provide effortless handling, particularly for larger, heavier panels, ensuring both safety and convenience.

Designed to offer peace of mind without visual compromise, the FD21 delivers a seamless blend of performance, comfort, and refined aesthetics, setting a new standard for secure, minimalist sliding doors.