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Alu Flex – Height Adjustable Glass Balustrade

Design & calculate price

Est. price at £655.50/m

  • Production time: From 35 days
Design & calculate price


Calculate price


Calculate price


Calculate price

Control Wind and Privacy with a Movable Glass Screen

Alu Flex is a stylish and functional adjustable glass railing designed to enhance comfort on your terrace, balcony or outdoor space. With its unique height-adjustable top panel, you can raise the glass when the wind picks up – and lower it again to enjoy fresh air and an open view. It’s a modern wind barrier that adapts to the weather and your needs, perfect for both residential and commercial environments.

Whether you’re protecting a poolside lounge, a roof terrace, or a café seating area, Alu Flex offers a contemporary solution that combines functionality, style, and simplicity.

Built to Withstand Wind – And Designed to Impress

This durable outdoor glass screen system is constructed with aluminium posts and laminated safety glass. You get the best of both worlds: minimal maintenance and a clean, elegant appearance.

Key features:

  • Adjustable top panel – smooth and effortless movement
  • Laminated safety glass – 8.76 mm or toughened laminated glass
  • Available post finishes – black, white, natural aluminium, or RAL colour
  • Custom dimensions – max width 2200 mm per section
  • Height ranges – 800/1300 mm to 1200/2100 mm (raised/lowered positions)*
  • Integrated counterweight system – safe and easy to use

*Note: If installed more than 2 metres above ground, the lowered height must be at least 1100 mm to meet safety regulations.

Collage of five height-adjustable glass railings installed on balconies and patios – with frosted or clear glass, black or silver frames and views of lakes and gardens.

Tailored to Your Needs – Designed in 3D

With Alu Flex, you have complete control over size, colour and finish. Use our 3D configurator to design a solution that suits your home’s architecture and your personal preferences.

  • Choose height and width for each section
  • Select aluminium finish and glass type
  • Preview the result in 3D before placing your order

You can visualise every detail in our configurator, adjust dimensions and receive a tailored quote instantly.

Easy to Use – Raise or Lower With One Hand

The built-in counterweight mechanism makes adjusting the top glass section smooth and effortless. Even a child can operate it safely. You get full control over ventilation, wind protection and privacy – without compromise.

Alu Flex is the ideal height adjustable windbreak for outdoor dining areas, spa zones or balconies exposed to strong winds.

Effortless Installation on Any Terrace or Balcony

The Alu Flex system is designed for straightforward, stress-free assembly. All screws and fixings are included, and each order comes with:

  1. Pre-cut, ground and polished glass panels
  2. Measurement templates for post placement
  3. Bespoke video instructions tailored to your project

No special tools or experience required – just follow the step-by-step video guide.

 

Ikon som föreställer en linjal och penna i kors, svart siluett på transparent bakgrund som representerar måttanpassade lösningar. Symbolisk bild av montering med skiftnyckel och skruvmejsel i kors, svart ikon mot transparent bakgrund.

Safety Comes Standard – Always Laminated Glass

All glass used in Alu Flex is 8.76 mm laminated safety glass, featuring two bonded panes with a plastic interlayer. This ensures that the glass remains intact even if broken, providing maximum safety for homes, restaurants or public areas.

For added strength in wind-exposed environments, toughened laminated glass is available as an upgrade.

Why Choose Alu Flex From Balustradedesign?

Alu Flex combines function and design in one elegant solution. It’s perfect for anyone who wants year-round use of their balcony or terrace – without sacrificing visibility or comfort.

  • Height-adjustable glass balustrade
  • Perfect for wind-exposed balconies and patios
  • Secure, laminated safety glass included
  • Smooth counterweight system – safe for children
  • Custom sizes and finishes
  • Suitable for both private homes and public spaces
  • Installation videos and templates included
  • Fast UK delivery and free shipping

Collage of five outdoor areas with adjustable aluminium and glass railings – with features like decking, parasols and Norwegian coastal views.

Frequently Asked Questions – Adjustable Glass Balustrade

  • Is it suitable for roof terraces or commercial patios?

    Definitely. Alu Flex is designed for both domestic and commercial use – including rooftop installations, café windbreaks and spa enclosures.

  • What sizes can I choose?

    You can choose from multiple standard height options, ranging from 800 mm up to 2100 mm (when raised). Widths go up to 2200 mm per panel, depending on conditions.

  • Does the system meet UK building regulations?

    Yes. Alu Flex is CE-marked and tested to meet BS 6180 standards for glass barriers in the UK.

  • What’s the difference between laminated and toughened laminated glass?

    Laminated glass is made of two bonded sheets with a plastic interlayer – it stays intact even if cracked. Toughened laminated glass offers extra strength and is best for windy or public areas.

  • Can I install this system myself?

    Absolutely. The product includes all fastenings and a measurement template. Plus, you get a bespoke video guide for your specific design.

  • Is the glass secure when raised?

    Yes. The panel locks into position and remains stable until you lower it again.

  • How does the adjustable glass panel work?

    It uses an integrated counterweight, making it easy and safe to raise or lower – even for a child. No external mechanism is needed.

  • Can I use Alu Flex as a windbreak for my patio or garden area?

    Absolutely. Alu Flex is ideal for terraces, balconies and gardens exposed to wind. Just raise the top glass panel for shelter and lower it again when you want airflow.

Discover the Benefits of an Adjustable Glass Railing

See how our customers have transformed their terraces and patios with Alu Flex – enjoying both wind protection and open-air freedom. Whether you're renovating a private balcony or designing a café garden, this adaptable glass railing makes all the difference.

Glass terrace screen with privacy and awning
Glass railing by terrace with lakeside view
Privacy screen with frosted and clear glass
Lakefront windscreen with adjustable glass
Black glass railing with sea view on terrace
Glass railing enclosing patio with BBQ area
Spacious terrace with dual-height glass railing
Privacy glass panels for sheltered terrace
Glass railing with water view from terrace
Glass windscreen with lake and mountain view
Full perimeter glass railing around patio
Adjustable glass railing with fjord view
White glass railing with coastal view by cliffs
Adjustable terrace railing with scenic landscape view

Technical information

Technical details

Width

Min. 500 mm Max. 2,200 mm Please note that the maximum width can be affected by the prevailing conditions such as wind load and installation height.

Height

Standard heights: • 800/1300 mm (lowered position/raised position) • 900/1500 mm • 1000/1700 mm • 1100/1900* mm • 1200/2100* mm (max. width 2,000 mm))

Moveable Glass

As standard, the movable glass sections are 6 mm laminated safety glass and the fixed glass sections are 6 mm laminated safety glass.

Aluminum Rail

As standard, the barrier comes with an aluminum rail that protects the horizontal edges of the glass.

Sanded Glass Edges

When designing your railing, you can choose to have a ground glass finish along the horizontal edges of the glass.

Glass Choice

Clear glass Opal glass has a whitish film between the panes, for extra privacy. Opal is also known as ‘frosted glass’.

Clamp Support

When using a clamp support, the barrier must be installed 25 mm from the edge of a wooden base and 50 mm from the edge of a concrete base. Both clamp screw holes must be used.

Balcony Support

A balcony support is installed close to the edge of the balcony base. The screws are fastened through the lower holes of the balcony support and through the top hole that is furthest from the edge of the base.

Screw for Wood Attachment

If you choose attachment to a wooden substrate, screws are included for this purpose. The screw is made of hardened steel and, in outdoor environments, also surface-treated with Corrseal – Corrosivity class C4. The screw is equipped with a milling groove along the stem and one on the tip. This means a very low screwing torque in harder wooden materials and minimizes cracking. The screw is 80 mm long with a torx grip, bits are of course included in your order. When fixing in materials other than wood or concrete, we recommend that you contact your local hardware store.

Screw for Concrete Attachment

If you choose attachment to a concrete substrate, screws are included for this purpose. The screw is made of hardened steel and, in outdoor environments, also surface-treated with Corrseal – Corrosivity class C4. The concrete screw is 90 mm long and is screwed directly into the pre-drilled hole without a plug using a 10 mm key, which is of course included in your order. Approved for base material cracked concrete, uncracked concrete & perforated decks. Also suitable for solid brick, hollow brick, solid mexite brick and natural stone. When fixing in materials other than wood or concrete, we recommend that you contact your local hardware store.

Everything is Included with Your Order

The package you receive from us includes everything you need to assemble your barriers. This includes posts, glass and handrails, as well as all screws, drill bits and special tools. All you need is a screwdriver, wrench, ruler and spirit level

Assembly Videos and Instructions

Our assembly videos help you by showing specific steps of the installation process. Our assembly tips and videos are adapted to each order. They’re not general descriptions, rather, they directly concern your particular order.

Glass

Use a soft cloth to clean glass surfaces with window or mirror cleaning fluid. For more difficult stains, rubbing alcohol can be used. Afterwards, clean with window and mirror cleaning fluid for a second time. Do not use abrasive agents on glass.

When you’re designing your balustrade, the usage class (A, B or C) gives an indication of where it’s suitable to use. Classes are based on UK Building regulations as specified by the British Standards Institution (see below), combined with our internal product tests, and take into account your specifications regarding balustrade height, section width, details, etc. They’re our recommendations to help you make the right choice! Outdoor Existing Buildings: minimum 1100 mm railing height Indoor Existing Buildings: minimum 900 mm railing height Residential environments: 0.74 kN/m Public areas: 1.5 kN/m Arenas/shopping centres: 3 kN/m Our balustrade solutions are CE marked, indicating they comply with relevant EU directives concerning health, safety, and environmental protection.

CLASS A

A Class A-rated railing meets the requirements specified above and is therefore suitable for use in all types of residential environments as well as public spaces such as offices, restaurants, and shops. Our Class A-rated railings withstand at least 0.74 kN/m in linear load, and in cases where the railing includes glass, it is safety glass designed to prevent injuries in case of impact.

CLASS B

Class B railings are suitable for use in environments where the level difference from floor to ground is 0-1 meter. Our Class B-rated railings withstand at least 0.5 kN/m in linear load, and in cases where the railing includes glass, it is safety glass designed to prevent injuries in case of impact.

CLASS C

C-rated railings are suitable for use at ground level. In cases where the railing includes glass, it is safety glass designed to prevent injuries in case of impact. A railing may become C-rated if Balustradedesign, together with you as the customer, makes a modification to the railing that deviates from our standard. C-rated indicates that this specific configuration has not been tested.

CUSTOMISABLE RAILING HEIGHT

In our configurator, you can choose a railing height between 800 mm and 1100 mm from the ground to the top of the railing.