
Frameless Glass Sliding System - SF20
The SUNFLEX SF20 Frameless Glass Sliding System brings natural light, uninterrupted views and effortless indoor-outdoor living to patios, balconies, entertainment areas and commercial spaces. The SF20 combines elegant frameless design with the practicality of smooth sliding glass panels.
Individual glass panels slide smoothly behind one another, creating generous openings while maintaining a refined, minimalist appearance. Closed, the frameless glass keeps the landscape in full view while creating a more comfortable, sheltered space.
Custom manufactured with precision aluminium tracks, stainless steel running gear and toughened safety glass, the SF20 is engineered for smooth everyday operation and lasting performance in both inland and coastal environments.
The SF20 combines German engineering with local manufacturing, creating beautifully crafted frameless glass systems designed to enhance the way you live.
- 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


Open Up Your Space With Ease
KEY PRODUCT FEATURES
Frameless Glass Sliding System - SF20

Intelligent Sliding Operation
The SF20 Frameless Glass Sliding System is designed for effortless everyday use. Individual panels glide smoothly behind one another, while integrated panel-following technology automatically draws adjacent panels along for easy operation across even expansive openings.
Key Specifications
- Automatic panel-following technology
- Smooth bottom-running system with concealed ball-bearing rollers
- Slimline aluminium tracks
- Panels stack neatly behind one another
- Custom opening configurations
- 10mm toughened safety glass

Designed for Modern Living
The SF20 is engineered to enhance the way you use your home. By enclosing outdoor spaces without sacrificing the view, it creates a brighter, more comfortable environment that can be enjoyed throughout the year while maintaining a seamless connection to the outdoors.
Key Specifications
- Wind protection
- Natural light
- Panoramic views
- Low-maintenance aluminium system
- Smooth everyday operation
- Custom manufactured for every project

Weather Protection
Enjoy Your Outdoor Spaces Year-Round
When closed, the SF20 Frameless Glass Sliding System creates a more sheltered space from wind and rain while preserving natural light and uninterrupted views. Integrated track drainage discreetly directs rainwater away, helping keep the space comfortable and easy to maintain.
Key Specifications
- Twin brush seals for improved weather resistance
- Weather-resistant aluminium construction
- Integrated track drainage
- Flush or weathered threshold options

Seamless Floor Transitions
The SF20 can be installed with an optional flush floor track, creating a smooth transition between indoor and outdoor spaces. Ideal for contemporary homes, it improves accessibility while maintaining clean architectural lines.
Key Specifications
- Flush threshold option
- Weathered threshold option
- Barrier-free design

Engineered for Everyday Living
The SF20 combines corrosion-resistant aluminium with premium stainless steel running gear for smooth, low-maintenance performance. Built-in adjustment keeps panels precisely aligned over time, even in demanding coastal environments. Every component of the SF20 has been designed for long-term reliability.
Key Specifications
- Premium stainless steel running gear
- Corrosion-resistant aluminium track and stainless steel components
- Height-adjustable running system
- Low-maintenance design
- Suitable for coastal environments

A Quieter Space
While the SF20 is designed primarily as a frameless sliding system, its precision sealing helps reduce everyday outdoor noise, creating a more peaceful environment to enjoy your patio, balcony or entertainment area.
Key Specifications
- Up to 17 dB airborne sound reduction
- Optional vertical gap sealing
- Brush gasket sealing system
Actual performance depends on glass glazing specifications.
DISCOVER
The Frameless Glass Sliding System - SF20

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.

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.

SF25
Each glass panel slides and turns independently before stacking neatly, for expansive, uninterrupted openings.
