Glass Balustrade Thickness

April 2024
Anton White

Determining the right glass balustrade thickness before glass balustrade installation is crucial for blending safety with sleek design, and it varies depending on the application and location. For residential projects, 10mm toughened glass often suffices.

Commercial spaces, on the other hand, may require the robustness of 21.5mm or even 25mm toughened laminated glass.

This article delves into the specifics, offering insights from our extensive experience in outdoor decking and accessories, to guide you through choosing the optimal thickness for your glass balustrade, ensuring it meets both aesthetic desires and safety standards.

What this article covers:

How Thick Should a Glass Balustrade Be?

From our experience, the thickness of your glass balustrade isn't a one-size-fits-all situation. For standard residential balustrades, a thickness of 10mm toughened glass is often sufficient.

However, when we're talking about commercial spaces or areas with higher foot traffic, we're looking at beefier options—think 21.5mm toughened laminated glass panels.

After putting it to the test, we've found that for frameless systems, which are all the rage for their sleek, uninterrupted views, a minimum of 15mm toughened glass is advisable.

But remember, the larger the span or the more demanding the application, the thicker the glass should be to ensure safety and durability.

At Ovaeda, we offer a range of glass balustrade thicknesses. From residential 10mm to 21.5mm that's perfect for commercial spaces, we've got you covered.

What Type of Glass Is Used for Balustrades?

According to our research and adherence to UK building regulations, toughened glass is the go-to for its strength—being about four times stronger than its non-toughened counterparts. This is achieved through a process of extreme heating and rapid cooling, known as quenching.

For an added layer of safety, especially in frameless designs or higher-risk areas, laminated glass is your best bet. This consists of two or more glass sheets with an interlayer sandwiched between them. Even if one layer were to break, the interlayer holds everything in place, preventing a total collapse.


Choosing the right thickness for your glass balustrade is a balancing act between aesthetic desires and safety requirements. With the insights we've shared, based on years of experience and rigorous testing, you're well-equipped to make an informed decision.

Whether it's for a serene residential balcony or a bustling commercial space, the right glass balustrade can elevate the safety and style of any area.

If you're ready to elevate your outdoor space, explore Ovaeda's premium range of glass balustrades with the perfect blend of safety and style tailored to your needs.

glass thickness for balustrade

Glass Balustrade Thickness (FAQs)

What are the height requirements for a glass balustrade?

According to Document K, the height of your glass balustrade should reflect its location and use. For residential areas, a minimum height of 1100mm is standard for balconies, while stairs and landings require at least 900mm.

Do you need a handrail for a glass balustrade?

This often depends on the specific design and installation. Generally, a handrail isn't mandatory if the glass is toughened and laminated, ensuring the structure remains intact even if a panel is compromised.

Can glass balustrades be used outdoors?

Absolutely! Glass balustrades are perfect for outdoor use, offering wind protection without obstructing the view. Just ensure the glass is appropriately toughened and treated to withstand the elements.

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