Frameless Glass Stacking System - SF25
Experience Uninterrupted Views with the SF25's frameless design which allows the landscape to take centre stage. Whether overlooking the ocean, mountains, bushveld or your own garden, the system creates an almost invisible barrier between inside and out, allowing natural light and panoramic views to become part of your everyday living experience.
Individual panels slide, turn and stack neatly to one side, clearing almost the entire opening for effortless open-air living. Closed, the SF25 provides enhanced security, noise reduction and exceptional protection from wind and rain.
Precision-engineered aluminium tracks, stainless steel running gear and toughened safety glass ensure smooth operation and lasting durability — even in demanding coastal environments.
Elegant frameless design. Intelligent engineering. Made for uninterrupted living.
- AAMSA 613 test certified for Primary enclosure
- Wind load resistance & weather tightness in compliance with both South African & International Standards
- Toughened Safety Glass and Glazing Certification according with SANS
- Energy Compliance with SANS
Uninterrupted Views
KEY PRODUCT FEATURES
Frameless Glass Stacking System - SF25
Frameless Design
The SF25 Frameless Glass Stacking System combines minimalist design with intelligent slide-and-turn operation. Individual glass panels glide smoothly along the track before turning and stacking neatly to one or both sides, opening almost the entire span.
With the glass stacked away, indoor and outdoor spaces flow effortlessly together. Closed, the frameless design keeps natural light and uninterrupted views at the heart of the space.
Key Specifications
- 8mm, 10mm or 12mm toughened safety glass
- Independent slide-and-turn panels
- Internal or external stacking with Left or right opening configurations
- Suitable for straight, corner and segmented architectural layouts
Weather Protection
The SF25 Frameless Glass Slide-and-Turn System combines slim weatherproof joints with intelligent sealing to provide exceptional protection from wind and rain while preserving uninterrupted views.
For enhanced performance, the EuroGlide Handle compresses the panels against continuous weather seals, creating a tighter, more protected enclosure.
Learn more about SUNFLEX frameless weather protection →
Key Specifications
- Optional EuroGlide compression sealing
- Interlocking panel with H-weather seals for enhanced weather resistance
- Integrated drainage channels
- Flush or weathered threshold options
Engineered to Glide
The SF25 uses a precision top-hung running system that carries the weight of each panel from above, resulting in exceptionally smooth and effortless operation while keeping the floor track discreet and unobtrusive.
Key Specifications
- Top-hung system
- Triple needle-bearing roller assemblies
- Stainless steel running gear
- Maintenance-free components
Secure Living
The SUNFLEX SF25 integrates security into its frameless design, with toughened safety glass, double locking and keyed access from both inside and outside — providing secure, convenient everyday access without compromising views.
For enhanced security, the optional EuroGlide System uses compression locking to secure the opening panel firmly into the frame, increasing resistance to forced opening.
Key Specifications
- Key locking access on the inside and outside of the system
- AAAMSA 613 Test Cert no D1433 for primary enclosure
- Double-locking mechanism
- 8mm, 10mm or 12mm toughened safety glass
- Optional EuroGlide compression locking system
Built for South African Conditions
Manufactured using corrosion-resistant materials and premium hardware, the SF25 is designed to withstand any demanding environments while maintaining its performance and appearance over time.
Key Specifications
- Corrosion-resistant stainless steel components
- Marine-grade hardware and powder coating options
- Durable aluminium track system
- Suitable for coastal applications
Design Freedom
The flexibility of the SF25 extends beyond straight openings. The system can be designed to continue around corners or follow curved building lines, allowing architects and homeowners greater design freedom without interrupting the seamless appearance of the frameless glass.
Key Specifications
- Corner solutions
- Curved installations
- Precision-engineered layouts
A Quieter Space
The SF25 helps reduce outside noise, creating a calmer, more comfortable living environment without closing you off from the view. Whether it's traffic, wind, neighbours or everyday outdoor activity, the system helps soften unwanted noise so you can better enjoy your space.
Key Specifications
- Reduces external noise
- Helps create a quieter indoor environment
- Ideal for homes near roads, schools or busy outdoor areas
- Airborne sound insulation up to Rw = 34db in compliance with DIN EN ISO 140-3*
Actual performance depends on glass glazing specifications.
DISCOVER
The Frameless Glass Stacking System - SF25
Speak to a Sunflex Specialist
From concept to installation, our experienced team can help you find the right Sunflex solution for your project. With a nationwide network of branches and authorised agents, we’re ready to assist wherever your project is located.
Complete the form to request your complimentary quotation.
More Products
Security Shutters
Slimline aluminium shutters with adjustable louvres for complete control over light, ventilation and privacy.
SF20
Smooth, effortless sliding panels that glide neatly behind one another to create wide, unobstructed openings.
SF35
Slimline double-glazed panels for superior weather protection, thermal insulation and noise reduction.
SF22
Smooth sliding operation with timeless character — decorative glazing bars on toughened safety glass.