A glass balustrade turns a staircase from something you walk past into a feature of the house. Light passes straight through it, the stairwell feels larger, and the shape of the treads becomes part of the design. This guide covers the main design options for stairs with a glass balustrade, how the glass is fixed, what UK building regulations expect, and four real CreoGlass staircase projects to show what each approach looks like once it is installed.
Why choose a glass balustrade for your stairs?
- More light: glass lets daylight from a landing window or rooflight reach the hallway below, instead of being blocked by spindles or a solid wall.
- A sense of space: without balusters the staircase reads as one clean shape, which makes narrow hallways and open-plan rooms feel wider.
- Shows off the stair itself: floating treads, oak strings and stone steps stay visible.
- Easy to keep clean: a wipe with glass cleaner replaces dusting dozens of spindles.
Design options for a glass staircase balustrade
Fully frameless glass
Panels of structural glass with no posts and, in many designs, no top rail. The glass is fixed to the side of the stair string or floor edge with discreet stainless steel point fixings, or set into a channel. This is the most minimal look and suits contemporary homes, floating staircases and double-height stairwells.
Glass with a handrail
Frameless glass with a separate wall-side or glass-mounted handrail. A handrail gives something to hold on the way up and, depending on the glass specification, may also be needed to keep the guarding safe if a panel were ever damaged.
Glass infill panels with timber or metal posts
Glass panels clamped between newel posts and under a handrail. This is the natural choice for an oak staircase: it keeps the warmth of the timber and swaps dark spindles for clear glass. It is also an easy way to update an existing staircase without replacing the treads.
How the glass is fixed
- Side (point) fixings: stainless steel discs bolted through the glass into the side of the stair or floor slab. The glass sits outside the stair, so it does not take up tread width.
- Base channel: a continuous channel recessed into the floor or fixed on top, holding the glass along its bottom edge for a clean, uninterrupted line.
- Clamps: small clamps that hold glass infill panels between posts or to a handrail, common on timber staircases.
- Spigots: short floor-mounted posts that grip the glass. More common outdoors and on landings than on the stair itself.
The right fixing depends on what the stair is built from. Concrete and steel take side fixings well. Timber stairs usually need clamps or a reinforced string. We confirm the fixing method at survey.
Building regulations for glass balustrades on stairs
In England, guarding on stairs is covered by Approved Document K (Protection from falling, collision and impact), and glass in guarding by its Section 5 on safety glazing. Guarding is needed at the sides of stairs and landings wherever the drop is more than 600mm. As a general guide for a house:
- Height: in a house, guarding on stairs, landings and internal floor edges must be at least 900mm high. External balconies and roof edges need at least 1100mm (Approved Document K, Diagram 3.1).
- Gaps: where young children may use the stairs, no opening in the guarding should let a 100mm sphere pass through.
- Handrails: stairs need a handrail on at least one side, with its top 900–1000mm above the pitch line, and on both sides if the stair is 1000mm wide or more.
- Glass: the glass must be safety glass that breaks safely (Approved Document K refers to impact classes under BS EN 12600) and is designed for the loads a barrier carries, following BS 6180, the British Standard code of practice for barriers in and about buildings. Where frameless glass is the barrier, toughened laminated glass is commonly specified, or a handrail links the panels, so the guarding stays in place even if one panel is broken.
Requirements differ for flats, commercial buildings and in Scotland, and your building control officer has the final say. We design every balustrade to the regulations that apply to your project.
Real projects: four glass staircase balustrades
1. A floating staircase in a contemporary home
This contemporary home has a cantilevered staircase climbing around a double-height void filled with pendant lights. Frameless glass runs up the open side of every flight and around each landing, side-fixed with stainless steel point fixings so the treads appear to float. With no posts or top rail, nothing interrupts the view of the lighting from any floor.
2. An oak staircase with glass panels
On this oak staircase, glass replaces traditional spindles. Glass infill panels sit between the oak newel posts and under the oak handrail, so the landing and hallway feel open and bright while the staircase keeps its warmth.
3. A loft conversion in Windsor
In this loft bedroom, the stairwell opening sits in the middle of the room. A frameless glass balustrade around the opening keeps it safe without walling it in, so daylight from the roof windows reaches the stairs below and the room still feels like one space.
4. External stairs to a basement terrace
Outside, glass works just as well. These external steps lead down to a lower-ground terrace. Frameless glass fixed to the stair wall guards the drop, and glass with stainless posts closes off the top of the lightwell, keeping the garden and the room below open to the light.
What affects the cost of a glass stair balustrade?
- Total length of guarding, including landings
- Glass type and thickness (toughened or toughened laminated)
- Fixing method and what the stair is built from
- Handrail material and design
- Number of shaped or raked panels (panels that follow the stair angle are cut individually)
- Access, site conditions and whether old balusters need removing
Every staircase is different, so we quote after measuring. Send us photos and rough dimensions and we can give you a guide price first. For outdoor projects, see our guide to frameless glass balustrades, and for the glass itself, what laminated glass is and where it is used.
Glass staircase balustrades: frequently asked questions
Is a glass balustrade safe on stairs?
Yes. Staircase balustrades use toughened or toughened laminated safety glass designed for the loads a barrier has to carry, and they are installed to meet building regulations.
Can I add glass to my existing staircase?
Usually, yes. On a timber staircase, glass panels can replace the spindles between existing newel posts and handrail. On concrete or steel stairs, frameless glass can often be side-fixed to the existing structure.
Do I need a handrail with a frameless glass balustrade?
You need a handrail on at least one side of the stair, and on both sides if it is 1000mm wide or more. Whether the glass itself needs a handrail fixed to it depends on the glass specification. We confirm this in the design.
Is glass a good choice with children?
Glass has no gaps or horizontal rails to climb, which is a real advantage over many spindle and wire designs. The panels are designed to meet the same safety rules as any other balustrade.
How do you clean a glass staircase balustrade?
Use a standard glass cleaner and a microfibre cloth. Fingerprints are the main issue at hand height, so a quick wipe once a week keeps it looking clear.
Planning a glass balustrade for your stairs? Explore our glass balustrade systems or send us photos of your staircase for a guide price.
