Looking for high-quality galvanised steel tubes? At Keyclampshop.co.uk we supply durable galvanised tubes in multiple diameters and lengths, ideal for safety railings, handrail systems, industrial furniture and a wide range of construction projects. All tubes can be ordered cut to size, allowing you to receive the exact length needed for your build.
Galvanised steel tubes for key clamp systems
Our galvanised steel tubes are the standard choice for key clamp constructions. These tubes combine strength, durability and corrosion resistance, making them suitable for both light-duty and heavy-duty applications.
We supply five tube diameters that perfectly match the corresponding key clamp sizes. Tubes can be cut to your required length, up to a maximum of approximately 640 cm.
For cost-efficient shipping, we recommend keeping tube lengths below 300 cm. If your project requires longer tubes, please contact us and we will gladly advise on the most efficient shipping options.
All tubes are hot-dip galvanised, which provides long-term protection against corrosion and weather exposure. This makes them suitable for both indoor and outdoor installations, particularly for handrail and guardrail systems.
Galvanised tubes for handrails and safety railings
Galvanised steel tubes are widely used for handrails, guardrails and safety barriers in commercial, public and industrial environments. The most commonly used diameters for railing systems are 42.4 mm and 48.3 mm, as these correspond with standard handrail fittings.
The strength of galvanised steel combined with corrosion resistance ensures that railing systems remain stable and low-maintenance for many years, even in demanding environments.
By combining our tubes with our range of key clamp fittings, you can quickly assemble custom handrails and guardrails without welding. This modular system is commonly used for stairs, platforms, mezzanines and access areas.
Tube clamps and fittings
To complete your construction, combine these galvanised tubes with our full range of key clamp fittings. These fittings clamp securely around the tube, allowing you to create strong and modular structures such as frames, racks, railings and support structures.
Tube lengths and diameters
We stock several standard tube lengths across multiple diameters. The overview below shows the most common options available for key clamp projects.
| Length / Diameter | 26.9 mm – Size 5 | 33.7 mm – Size 6 | 42.4 mm – Size 7 | 48.3 mm – Size 8 | 60.3 mm – Size 9 |
|---|---|---|---|---|---|
| 106.6 cm | No | Yes | Yes | Yes | No |
| 128 cm | No | Yes | Yes | Yes | No |
| 145 cm | No | No | No | Yes | No |
| 160 cm | Yes | Yes | Yes | Yes | Yes |
| 213 cm | Yes | Yes | Yes | Yes | Yes |
| 240 cm | Yes | Yes | Yes | Yes | Yes |
| 320 cm | Yes | Yes | Yes | Yes | Yes |
| 640 cm | Yes | Yes | Yes | Yes | Yes |
The benefits of galvanised steel tubes
Galvanised steel tubes are extremely strong, impact-resistant and designed for long-term use. The protective zinc coating prevents rust and surface damage, ensuring reliability even in demanding industrial environments.
Because of their strength and corrosion resistance, these tubes are often used in load-bearing structures and outdoor constructions such as railings, canopies and protective barriers.
Industrial furniture made with galvanised tubes
Galvanised tubes are also popular for industrial-style furniture, including racks, tables, shelving units and coat stands. The robust steel appearance fits perfectly within modern industrial interior design.
Different tube diameters create different visual styles. For example, 42.4 mm tubes provide a strong and robust appearance for tables or frames, while 26.9 mm tubes are often used for lighter furniture designs.
Which tube size fits which key clamp size?
Each key clamp fitting is designed to match a specific tube diameter. Choosing the correct tube size ensures a secure connection and a stable construction. The table below shows the standard tube diameters and their corresponding key clamp sizes.
| Key Clamp Size | Tube Diameter | Typical Applications |
|---|---|---|
| Size 5 | 26.9 mm | Light structures, furniture frames, displays |
| Size 6 | 33.7 mm | Light handrails, shelving systems, small frameworks |
| Size 7 | 42.4 mm | Standard handrails, guardrails, safety barriers |
| Size 8 | 48.3 mm | Heavy-duty handrails, industrial barriers |
| Size 9 | 60.3 mm | Large structural frames and heavy constructions |
Most handrail systems use 42.4 mm (Size 7) or 48.3 mm (Size 8) tubes, as these diameters correspond with standard safety railing dimensions used in many industrial and public environments.
When selecting tubes, always ensure the diameter matches the correct key clamp fittings to guarantee a strong and reliable connection.
Fast delivery and customer support
At Keyclampshop.co.uk, all tubes are supplied directly from stock. After placing your order, we immediately start cutting and preparing your tubes for fast dispatch.
Need help planning your project? Our team is happy to assist with practical advice. You can also explore ideas and guides in our DIY blogs.