CoF Trailers
Custom‑built trailers engineered for loads over 3.5T.
If you need to carry more than the standard 3.5T WOF trailer limit, we design and build fully engineered trailers in the COF / TC class. Whether it’s a tiny house, transport trailer, container trailer, or caravan foundation, we can build a heavy‑duty solution that fits your exact requirements.
We custom‑design every TC‑class trailer from the ground up. Our team handles the entire process — design, structural engineering, fabrication, assembly, and certification — to ensure your trailer meets all NZTA compliance standards.
For a deeper look at COF trailers and towing over 3.5T, see our full guide in the blog.
See how we can help with your trailer design.