5 reasons to choose a Treg Trailer

  1. Established in 1947 with the same owners today.
  2. Made at our factory in South Australia, using all Australian materials.
  3. 12 month warranty (not that you’ll ever need it).
  4. Comprehensive after-sales service (should you need us).
  5. Engineering, machinery and rolling – all from our fully-equipped workshop.

Notice of ceased engineering and trailer production

We regret to inform you that after 75 years of trading Gordon J Tregoning Pty Ltd and Treg Trailers Pty Ltd has ceased engineering & trailer production. We are still selling the TREG Poly Block couplings and parts in our online store and our office is open on Fridays from 8:00am to 4:00pm.

The original Poly Block Couplings

The Original Treg Poly Block Couplings and Parts are still available and will continue to be available in out online store.  There are a few items out of stock but they will be available soon.


There is a company called “Trailer Makers & General Engineers” pretending to manufacture trailers at 120 Ashley Street, Underdale.  DO NOT send them any money.  A number of people have been scammed and have reported this company to the Police.  If you are in the market for a trailer only purchase one you can see at a reputable dealership.