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Custom balustrades can be designed around the staircase already in place by assessing its dimensions, geometry, surrounding structures and fixing conditions before fabrication begins.
This approach is useful during staircase renovations and commercial alterations where the existing stairs are being retained. Instead of trying to make a standard railing system fit an existing structure, the balustrade can be designed to suit the on-site conditions.
What Needs to Be Checked Before Designing the Balustrade?
The first stage is understanding the existing staircase as a physical structure. Its dimensions are important, but they are only part of the assessment.
Several site conditions can influence the eventual design:
- The configuration of the staircase
- Tread and riser arrangement
- Landings and changes in level
- Changes in direction
- Available fixing surfaces
- Adjacent walls, posts and other structures
- The condition of the areas where components are intended to be secured
- The proposed position of the balustrade in relation to the stairs
These factors are connected. For example, a change in direction affects the balustrade's path, while a restricted fixing surface can limit where posts or brackets can be positioned.
The supporting structure is also important. A balustrade transfers forces through its connection points, so the surface receiving those connections needs to be suitable for the proposed arrangement. If an existing surface cannot provide an appropriate fixing location, the design may need to change, or additional structural work may be required.
This assessment helps establish what can be fabricated before the project reaches the installation stage.
How Is an Existing Staircase Measured for a Custom Balustrade?
| Information Considered | How It Informs the Design |
|---|---|
| ◆Stair dimensions | Establishes the geometry that the balustrade needs to follow |
| ◆Treads and risers | Helps determine the position and progression of the railing along the stairs |
| ◆Landings | Establishes transitions between different sections |
| ◆Changes in direction | Influences the arrangement of rails, posts and other components |
| ◆Fixing locations | Identifies where the balustrade can be securely connected |
| ◆Surrounding structures | Shows where existing features may affect the proposed layout |
| ◆Levels and transitions | Helps establish how the balustrade continues between different areas |
Once these measurements have been established, they can be incorporated into the design used for fabrication. This is particularly important where the staircase has been modified previously or contains dimensions that differ from a standard layout.
How Is the Balustrade Designed Around Existing Staircases?
Once the existing staircase has been measured, those measurements are used to develop the balustrade layout. The aim is to create a bespoke railing that follows the actual shape of the stairs while allowing its individual components to connect correctly.
Establishing the Railing Path
The first design decision is determining the path the balustrade will follow. A straight flight will generally require an inclined railing section, while a staircase with a landing or change in direction may require several connected sections.
The design sets out where each section starts and ends, how it follows the staircase and how the sections meet. This allows the railing to follow the existing geometry instead of imposing a standard layout on the staircase.
Working Around Changes in Direction
Where a staircase turns, the balustrade needs to change direction with it. The designer determines how the railing transitions between flights and how the components meet at the corner or landing.
This can involve separate railing sections for each flight, with the connection between them designed as part of the overall arrangement. The available space around the turn also needs to be considered so the components can be positioned and connected as intended.
Arranging Posts and Other Components
The positions of posts, brackets, and other supporting components are established as part of the design. Their locations need to work with both the proposed railing path and the existing structure.
For example, a narrow stair edge may restrict where a post can be placed, while an adjacent wall may affect how a section connects at the end of a flight. The design can account for these conditions by adjusting the component arrangement before fabrication.
Adapting the Design to Existing Features
Existing stairs may contain features such as walls, trim, flooring, previous alterations or uneven edges. These can affect the available space and the way the balustrade meets the surrounding structure.
A made-to-fit design incorporates these conditions into the fabrication drawings and component layout. This means the balustrade is designed for the staircase on site, including its irregularities and constraints.
What Materials Can Be Used for a Custom Stair Balustrade?
Material selection depends on the staircase structure, fixing methods, and overall design intent when planning your custom stair railing. Each option impacts the final look and feel of the balustrade:
- Stainless Steel: Delivers a clean, contemporary, and professional aesthetic while offering exceptional structural rigidity, corrosion resistance, and long-term durability for both residential and commercial applications.
- Glass: Maximises visual openness and natural light flow, creating an expansive, uncluttered look that keeps surrounding architectural features, joinery, and interior views completely unobstructed.
- Aluminium: Offers high versatility and adaptability with surrounding finishes, enabling lightweight yet robust custom profiles tailored to complex layout requirements and modern architectural styles.
What Does Retro-fit Balustrade Installation Involve?
Installation involves positioning and securing the finished components against the existing staircase. The work needs to follow the established layout while accounting for the actual conditions encountered on site.
Preparing the Installation Area
Before the balustrade is fixed in place, the intended connection areas need to be accessible and suitable for the specified fixing method. Existing finishes or obstructions may need to be accounted for so the components can be installed as designed.
This stage connects the earlier site assessment with the physical installation. If conditions differ from those recorded during measurement, the installation approach may need to be reviewed before the components are permanently secured.
Positioning the Fabricated Sections
The fabricated railing sections, posts, panels, or other components are positioned against the staircase in accordance with the approved layout. Their alignment is checked across straight flights, landings and changes in direction.
This is where the accuracy of the fabrication and the original measurements becomes evident. Components made to the staircase dimensions should correspond with the positions established during the design stage.
Securing the Balustrade
Once the components are correctly positioned, they are connected to the existing supporting structure using the specified fixing arrangement. The connection needs to suit the structure and the balustrade system being installed.
Where several sections meet, the connections between components are also completed, so the finished balustrade forms a coordinated installation across the staircase.
Checking the Completed Installation
The final stage is checking the installed balustrade against the intended design and the requirements applicable to the project. This includes reviewing the positioning, connections, alignment and overall finish.
For an existing staircase, these checks help confirm that the fabricated balustrade has been installed in accordance with the conditions established during the earlier assessment and design stages.
Why Choose MLR Engineering for Your Fabrication Requirements?
With decades of industry experience since 1996, we deliver custom fabrication solutions for both residential and commercial projects. Here is what sets our service apart:
- End-to-End In-House Capabilities: Managing the entire process from initial consultation and custom design to precise manufacturing and professional installation, ensuring seamless quality control.
- Thorough Site Assessments: Conducting comprehensive on-site visits to evaluate existing structures, fixing conditions, and surrounding environments before any fabrication begins.
- Versatile Material Expertise: Offering flexible design options using high-grade stainless steel, aluminium, durable powder-coated finishes, and tempered glass.
Ready to start your staircase renovation? Contact us today to discuss your custom balustrade needs.
Frequently Asked Questions
Yes. A new balustrade can often be designed around an existing staircase, provided the staircase and its supporting structure are suitable for the proposed installation.
The cost varies based on the staircase layout, total linear meters, material selection (such as glass versus stainless steel), and the complexity of the fixings. A site visit is required to provide an accurate price.
While fabrication timelines depend on material choice and design complexity, the l on-site installation usually takes anywhere from a few hours to a couple of days.
Not necessarily. Choosing materials like frameless or semi-frameless glass maximises light flow and visual openness, which can make a compact or narrow staircase feel much more spacious than a traditional, bulky railing.