Custom trailers
Engineered for strength.
Built for purpose.
When you need a trailer that can handle serious use — not just a few runs to the dump — you need more than something off the shelf. Designed and fabricated in-house at our Tairua workshop, our custom trailers combine heavy-duty construction with the engineering precision that’s become a hallmark of Alted quality.
Every trailer is modelled in SOLIDWORKS to your exact dimensions and load requirements, ensuring balance, stability, and performance from the first weld to the final test run.
Each custom trailer build is led by Bennet Gage-Brown, who brings more than two decades of design experience in the transport industry — from military-grade trailers to patented commercial models. That same level of engineering rigour now goes into every custom Alted trailer, delivering unmatched strength, safety, and attention to detail.
We don’t just build to spec — we build to last. Every weld, angle, and fitting is chosen for reliability and performance in New Zealand’s toughest conditions.
Tailored design, no compromise
Whether you’re hauling gear for work, transporting machinery, or setting up for remote operations, we’ll design a trailer that fits your purpose exactly. Not the other way around.
Our work includes:
Tandem-axle enclosed trailers for secure, all-weather transport
Flat decks and tipper systems for commercial or rural use
Specialist setups for marine, forestry, and heavy-equipment applications
Full customisation of size, layout, running gear, and electrical systems
Just a few of our custom trailers from right here in Tairua
Why Choose Alted
Designed in SOLIDWORKS for precision and load balance
Fabricated in-house for total quality control
Built using Duragalv pre-galvanised steel and HDG900 options for extreme durability
Proven experience from defence-grade transport design through to modern industrial builds
Need a trailer that’ll work as hard as you do?
Talk to Alted Engineering about your custom design today. Built to your specs, tested to ours.






