In commercial and industrial environments, cable containment isn’t an afterthought, it’s infrastructure. Cables must be protected. Installations must look professional. Systems must perform long-term. This is exactly what Trench pre-galvanised cable trunking delivers. Manufactured from steel with a strip galvanised surface and supplied in 3m lengths, this range is designed to provide strength, durability, and a clean, structured finish, all while not complicating installation.
Why Choose Trench Pre-Galvanised Cable Trunking?
Engineered from galvanised steel to provide reliable mechanical protection in commercial and industrial applications. Using Trench’s galvanised trunking creates organised, enclosed cable routes, thereby delivering a clean and protected finish that adds a level of detail to your jobs.
Supplied in 3m lengths for straightforward handling and on-site fitting. The galvanised surface enhances resistance to corrosion, supporting long lifespan and depeandable performance, providing confidence to both installer and customer.
What Is Pre-Galvanised Trunking?
Pre-galvanised trunking is formed from steel that has already been zinc-coated before fabrication. This protective layer helps guard against corrosion while maintaining the strength and rigidity of steel containment.
For installers, this means:
- Reliable mechanical protection
- Consistent structural integrity
- Suitability for indoor commercial and industrial environments
- Reduced ongoing maintenance
The Trench range is available in multiple size options, allowing you to match trunking capacity to your specific cable requirements.
The Trench Pre-Galvanised Trunking Range
Trench pre-galvanised trunking lengths (3m) are available in a variety of width and depth combinations to suit different installation demands.
The range includes:
- Compact trunking for lighter cable runs
- Mid-range sizes for combined power and data installations
- Larger capacity trunking for higher volume cable containment
- Compatible lids and accessories for a secure, finished system
Because it’s part of a consistent containment system, sizing and compatibility remain straightforward, helping maintain installation efficiency and a uniform finish across projects.
Sizes We Stock
We currently stock the following Trench galvanised trunking sizes:
- 50 x 50mm
- 75 x 75mm
- 100 x 100mm
- 150 x 150mm
Our most popular size is Trench ST22 | 50x50mmx3m Metal Cable Trunking Length, Galvanised.
Alongside these trunking lengths, we also stock the full range of accompanying accessories to ensure a complete and consistent installation. Lids and connectors come with each length of trunking that is purchased but additional lengths of lid or packs of connectors can be purchased seperately.
If you require sizes outside of our stocked range, please contact us at sales@gosparky.co.uk or call 0800 112 00 90 and our team will be happy to assist.
Complete the System with Trench Accessories
A trunking system is only as effective as the components that support it. To ensure smooth directional changes and a professional finish, the Trench range includes a full selection of compatible accessories.
Tees
Allow for clean branching of cable runs without compromising containment strength or alignment. We offer gusset tees to allow for a smoother bend for your cable.
90° Bends (Flat, Internal & External)
Designed to manage directional changes while maintaining full cable protection. Flat, internal, and external 90° bends are available to suit wall runs and corner transitions.
45° Bends
Available in flat, internal, and external configurations, 45° bends provide smoother routing where gradual directional changes are preferred or space is limited.
Hangers
Support secure suspended installations, helping maintain alignment and structural integrity when trunking is ceiling-mounted or installed at height.
End Caps
Provide a clean, enclosed finish at the end of trunking runs, helping prevent dust ingress and maintaining a professional appearance.
Using matched accessories ensures:
- Consistent structural support
- Continuous cable protection across all transitions
- Reduced on-site modification
- Faster, more efficient installation
- A uniform finish throughout the project
With purpose-built fittings, installers can create structured cable routes without cutting or adapting standard lengths unnecessarily.
Designed With Installers in Mind
Trench trunking supports efficient installation through:
- Straightforward fixing
- Secure lid fitment
- Consistent sizing across lengths and accessories
- Ease of future cable additions
A properly planned trunking system simplifies both initial installation and later modifications, helping projects remain adaptable long after completion.
Final Thoughts
Galvanised cable trunking plays a critical role in protecting cables and maintaining structured, professional installations, and choosing the right system makes all the difference.
With Trench pre-galvanised 3m trunking lengths and fully compatible accessories, you’re investing in:
- Strong steel containment
- Corrosion-resistant performance
- Clean, precise cable routing
- Long lifespan in demanding environments
- A complete, coordinated system designed to work together
If you’re specifying, installing, or upgrading cable containment in a commercial or industrial setting, Trench galvanised trunking provides a dependable solution you can install with confidence.
Explore the full range today and choose a system built to deliver reliable performance from first fix to final inspection, and long after the job is complete.