Glass balustrades can completely change the appearance of a home. They provide a contemporary look and feel and are exceptionally good at allowing light to travel through a space. In addition, they have a safety role to play, providing essential protection around stairs, landings, balconies and other changes in level without creating the visual barrier of a solid wall.
However, a successful glass balustrade installation requires more consideration than simply choosing a design you like. From finding the correct glass thickness to taking accurate measurements, there are several practical and safety considerations to address before getting started.
Below, we will outline five of the most important things to consider when considering glass balustrades for your home.
1. Think about where your glass balustrade will be installed
First things first, it’s important to be clear on where you envisage using your glass balustrade and the job it needs to do.
Glass balustrades can be used in many areas, including:
- Staircases and landings
- Mezzanine levels
- Balconies and terraces
- Raised patios and decking
Although the same contemporary aesthetic can be achieved in each location, the technical requirements may differ considerably.
For example, an external balustrade needs to withstand the conditions it will be exposed to, while a balustrade protecting a significant change in level needs to perform as an effective safety barrier.
Considering exactly how and where your balustrade will be used is the starting point for determining its overall specification.
2. Choose the right glass thickness for a balustrade
One of the most common questions we hear from homeowners is “what is the right glass thickness for a balustrade?”
There isn’t a straightforward answer to this and the required glass thickness for a balustrade can depend on factors including:
- The dimensions of each glass panel
- Whether the balustrade is internal or external
- The fixing and support system
- Whether a handrail is incorporated
- The loads the balustrade needs to withstand
- The type of safety glass being used
This is why glass thickness shouldn’t be chosen based purely on appearance or price.
At Forsyth Glazing, we offer two glass balustrade systems. The first of which is a channel system with no posts, resulting in a seamless design. It uses a floor channel which generally accommodates 12 to 19mm thick toughened glass. The other option is integrated stainless steel posts and rails where the glass panels are normally 10 or 12mm thick toughened glass.
A professional glazier, like Forsyth Glazing, can assess your proposed installation and advise on the correct specification to ensure you comply with building safety regulations.
3. Make sure your measurements are accurate
Accuracy is essential when measuring for a glass balustrade. Start by establishing the total area the balustrade needs to cover, including the length of staircases, landings or balconies and the required height. Measurements should be taken at several points, as floors, walls and staircases aren’t always perfectly level or square.
You also need to consider:
- Positions of posts or fixing points
- Individual glass panel widths
- Gaps required between panels
- Corners and changes in direction
- Stairs and changes in angle
- Handrail requirements, where applicable
The final dimensions will depend on the balustrade system, so initial measurements should be treated as a starting point rather than manufacturing dimensions.
For bespoke glass, arranging a professional site survey is the safest approach. This allows exact measurements to be taken before the glass is cut and processed.
4. Decide how you want your glass balustrade to look
Glass balustrades aren’t simply a functional safety feature; they can become an important part of your home’s interior design.
A frameless or minimal system can create an almost uninterrupted view, helping staircases and open-plan spaces feel bright and spacious. Alternatively, combining glass with stainless steel posts and handrails introduces a more defined architectural feature while maintaining excellent visibility.
Clear glass is a natural choice if maximising light is the priority, while other glass finishes can be considered where additional privacy or a different aesthetic is desired.
Think about how the balustrade will work alongside your flooring, staircase, furniture and other finishes rather than treating it as an isolated feature.
5. Consider safety and professional installation
Unlike a decorative glass panel, a balustrade has an important protective function. Correct specification, manufacture and installation are therefore essential.
The supporting structure and fixing system need to work together with the glass to create a secure barrier and should be designed with the hazards, use of the building and risks to occupants in mind.
Professional installation reduces the risk of problems such as poorly aligned panels, inappropriate fixings or incorrectly specified glass.
Planning your glass balustrade with Forsyth Glazing
From enhancing a staircase to creating uninterrupted views across a balcony, glass balustrades combine contemporary design with practical functionality.
The key is to plan the installation carefully by considering the location, taking precise measurements and choosing a design that both complements your home and prioritises safety.
Established in 1969, Forsyth Glazing manufactures its glass products at its Glasgow factory and offers solutions ranging from stainless steel glass balustrades to specialist cut glass and structural glazing.
If you’re unsure how to measure for a glass balustrade or which specification is right for your project, getting professional advice from the outset can help turn your ideas into a safe, beautifully finished feature that enhances your home for years to come.
If you’re considering installing glass balustrades in your home and would like help choosing the right one for you, contact the team at Forsyth.



