Dovetail Car Trailer

This plan is for a tough, flexible and versatile dual axle car trailer. The Subframe is of strong RHS with plenty of support using cross members every 600 mm.

Included in this Trailer Plan
  • Drawings
  • Pictures
  • Part and cut lists
  • Construction tips
  • General advice
  • All in PDF file Format



With the plans, you will be able to build your own trailer, as there are so many options available with guard and side gussets, different mudguard shapes. Weather you locate your ramps underneath or standing up to give more ground clearance, and put the number plate on the back of the ramps.

There is plenty of options as far as ramps go, also light channels to gain maximum height under the back to avoid scraping.

The use of a full rear Mudguard Gusset allows the user to be able to walk along the side of the loaded trailer, also a support bar can be added to help to support the tandem Mudguard and allows the wiring to be placed inside the SHS and up to the Clearance Lights.

A View of Roller Rocker Suspension being used in this Trailer, and depending of the weight rating required whether the use of single or dual axle Braking being used, also a good view of the underbody ramp setup.

This Trailer utilizes Cross Members every 600 mm for maximum floor strength, as an option the Trailer can be fully sheeted to suit your needs.

Checker Plate or other steel sheets like Galvanize steel can be used to build the trailer sheet metal parts for e.g. Mudguards, inner guards and gussets.

This Trailer can also be built with a Tilt Drawbar to suit your needs.

The plans conform to the Australian National Code of Practice – Building Small Trailers (VSB1). Trailers built to comply with this code of practice can be registered for on-road use in Australia


    Tandem Dual Axle Car Trailer
  • Bed Size – 4800 x 1900 mm (can be made to 4800 x 2000 mm)
  • Gross Vehicle Mass (GVM) of up to 2000kg
  • Weight of Trailer (ATM) approximately 700kg
  • Slipper to Slipper Suspension – Optional Roller Rocker
  • Chassis Construction – 75 X 50 RHS
  • Ramps
  • Tandem Mudguards
  • Swing up Jockey Wheel
  • Spare Wheel Mount