To choose the right glass clamp for glass balustrade, first make sure that the fastener is compatible with the glass’s thickness and construction, and then select the model, material, and colour based on the railing’s design and the environment where it will be used.
Rounded and square glass clamps offer different design styles, while stainless steel, painted zinc, and raw zinc differ in both appearance and properties. At the same time, the glass thickness and the correct rubber insert must match the glass clamp you choose.
Find out how to choose clamp shape and material, use glass with your own posts, understand how loads pass through the structure and check the details before ordering.
Which glass clamps suit your balustrade – rounded or square?
glass clamps, with their rounded shape, give glass balustrade a softer look, while glass clamps, with their square shape, emphasize straight lines and a more graphic design language. Choose the shape that best complements the railing posts, the house, and other details around the space.
Clamp shape mainly affects the appearance. The clamp fit, glass thickness and supporting structure must still be suitable, whether you choose rounded or square clamps.
Rounded glass clamp
The rounded profile softens the transition between the clamp and the glass. It can work well where you want understated detailing or where the building has more traditional, curved features.
A good fit for softer, more classic designs.
Square glass clamp
The square shape emphasises the straight lines of the balustrade and gives the fittings a more geometric look. It works especially well alongside angular posts, façades and other modern details.
A good fit for modern and minimalist designs.
Which material should you choose for glass balustrade clamps?
Choose stainless steel AISI 316 if you want a distinct stainless metal detail, painted zinc if glass clamps you want it to match the railing’s colour, and raw zinc if you prefer a more untreated metal surface. All three options can be used with glass balustrade, but they create different looks.
When choosing glass and glass clamps you therefore need to consider how the material complements the colour of the posts, the style of the house, and how prominent you want the hardware to be.
| Materials | Appearance | Suitable for |
|---|---|---|
| AISI 316 stainless steel | A stainless steel finish that creates a visible metal detail against the glass and posts. | You want the clamps to form a visible part of the balustrade’s metal detailing. |
| Painted zinc | A painted surface that can match the railing's colour and blend in more discreetly with the post. | You want to create a consistent look and feel between posts and glass clamps. |
| Raw zinc | An untreated zinc surface with a rawer, more natural metal appearance. | You want to preserve the character of the untreated zinc finish. White corrosion marks can occur outdoors without affecting the clamp’s function. |
Match the balustrade or create contrast
glass clamps, which are painted, are available in black, white, or aluminium-coloured. Matching the railing’s colour makes the fittings more discreet, while a contrasting colour makes them stand out more clearly against the glass.
Can you use glass balustrade clamps with your own posts?
Yes. Glass clamps and glass can be used together with your own posts, provided that posts, fixings, and the supporting structure are suitable for glass balustrade and the load that the structure must be able to bear. The solution varies depending on whether posts is already in place or if you are building the railing from scratch.
Keep the posts and replace the infill
If an existing balustrade has timber slats or cross-bracing, glass may be used as replacement infill provided that the posts and supporting structure are suitable. This retains the posts while creating a clearer view through the balustrade.
At the same time, the glass can provide more shelter. When an open infill is replaced with glass, less wind passes through the railing itself. It may therefore be relevant to also compare the solution with glass that windbreak.
Adapt posts to the setting and let the glass become the filling
If you build the frame yourself, the material, dimensions, and colour of the posts can be customized to match the house and the location. The glass is installed between posts using glass clamps, creating a transparent infill without a full metal frame dictating the railing’s appearance.
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Choose the posts’ materials and dimensions to suit the structure.
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Match the colour to the facade, the railing, or other details on the house.
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Use glass infill where you want to retain natural light and views between the posts.
What loads must posts and fixings support when holding glass clamps?
Posts and fixings must transfer loads from the glass into a suitable supporting structure. The glass clamp connects glass to post, but even a strong clamp cannot compensate for a post or fixing that is inadequately sized or anchored.
The glass receives the load imposed on the balustrade.
The glass clamp transfers the load from the glass to the post.
The post transfers the load to the supporting structure.
The post must be anchored to a structure capable of carrying the load.
Glass, glass clamp, post, fixing, and the underlying structure must work together.
What do you need to check if you use your own posts?
Check that the posts have suitable materials and dimensions, that their fixings reach a load-bearing structure and that an existing frame is capable of supporting glass in place of timber slats. Clamp-to-glass compatibility is only one part of the assessment.
If posts is to be anchored to a timber decking, the structure beneath the decking must also be able to support the load. Posts must be anchored to load-bearing parts of the structure, not just to the decking boards.
What glass thickness is suitable for balustrade clamps?
Glass clamp must be compatible with the glass thickness and combined with the correct rubber insert. For glass and glass clamps, 8.76 mm laminated glass is used, in which two 4 mm glass panels are held together by a plastic film. The same glass thickness is also available as toughened laminated glass.
The glass is available in ultra-clear, clear, opal, and grey, and all four glass types can also be selected as " toughened." This means you can choose the finish and glass type without changing the specified thickness of 8.76 mm.
The glass, rubber inserts and clamps must fit together
The rubber insert sits between the glass and the metal clamp, helping it hold the glass securely without direct metal-to-glass contact. Choose inserts and clamps that match the thickness of the selected glass.
8.76 mm with two glass panes
Two 4 mm glass panes with an interlayer of plastic film. The interlayer holds fragments together if the glass breaks; the glass edges are supplied ground and polished.
8.76 mm with toughened glass panes
Two toughened 4 mm glass panes with a plastic interlayer. Used where the selected glass specification needs to withstand repeated external loads.
8.76 mm in four glass finishes
Choose ultra-clear, clear, opal, or grey laminated glass. All four glass types are also available as toughened laminated glass.
What should you check before choosing glass balustrade clamps?
Check the shape and material, along with the thickness of the glass, the dimensions between posts and the structure that will support the railing. This will ensure both the right look and a solution where the glass, glass clamps, and posts work together.
Check these seven points
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Choose rounded or square clamps
Rounded clamps give a softer look; square clamps emphasise straighter, more geometric lines.
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Choose the material and colour
Choose stainless steel AISI 316, painted zinc, or raw zinc. For painted brackets, the colour can match the railing or be used to create a more distinct contrast.
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Check the glass type and thickness
Glass and glass clamps are used with 8.76 mm laminated glass. Choose ultra-clear, clear, opal, or grey, and decide whether standard or toughened laminated glass best suits the environment.
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Measure between the posts
Enter the exact clear opening between the posts in millimetres. The ordering system then allows for the space needed by the clamps and calculates the glass dimensions for the opening.
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Allow for wider glass panels
For glass widths over 1,400 mm, the system subtracts 44 mm from the height and accounts for six glass clamps per pane of glass, including one extra above and one extra below the glass.
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Check the posts and their fixings
If you use your own posts, posts, fixing, and the load-bearing structure must be suitable for glass balustrade and the load to be supported.
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Use the correct rubber inserts
The rubber inserts must suit both the clamp type and the glass thickness, so the glass fits correctly within each clamp.
Choose glass clamp only after you have ensured that the shape, material, glass, and rubber inserts are compatible, that you have the correct measurements between posts, and that you have a design capable of supporting glass balustrade.
Which glass clamps will suit your balustrade?
Consider the glass thickness, clamp design and finish you prefer. Our customer service team can help you check measurements before ordering.
What should you know before choosing glass balustrade clamps?
Here are answers to common questions about clamp shapes, materials, glass thickness, your own posts, measuring and the number of clamps required.
Which glass clamps should I choose for my balustrade?
First, check that the clamps suit the thickness of the glass and use the correct rubber inserts. Then choose rounded or square shapes and a material that complements the balustrade.
What is the difference between stainless steel, painted zinc, and raw zinc?
Stainless steel glass clamps is made of acid-resistant stainless steel AISI 316 steel and serves as a distinctive metal detail. Painted zinc can match the railing’s colour, while raw zinc has a more untreated metal surface.
What colours are available for painted glass clamps?
glass clamps, which are painted, are available in black, white, or aluminium-coloured. You can therefore choose to match the brackets to the colour of the railing or use them to create a more distinct contrast with the post.
Can I use glass balustrade clamps with my own posts?
Yes. Glass and glass clamps can be used in combination with your own appropriate posts. Posts, fixings, and the load-bearing structure must then be adapted for glass balustrade and the load it is intended to support.
How should I measure the glass between the posts?
Enter the blank hole dimensions between posts in millimeters. The system will then calculate the necessary recess for glass clamps, and the glass will be manufactured according to the dimensions of the specific opening.
Does the glass thickness affect which clamps I can use?
Yes. Glass clamp and the rubber insert must match the thickness of the glass. For glass and glass clamps, 8.76 mm laminated glass is used, even when you select toughened laminated glass.
How many clamps are needed for each glass panel?
The number of clamps depends on the glass width and is calculated by the ordering system. For glass widths above 1400 mm, six clamps are specified per panel, including an additional clamp above and below the glass.
