Our process

At Ultimate Plant Trailers we want you to have a great experience. From the first call through to the end of your build, we aim to make the custom trailer fabrications process as streamlined as possible.

We understand each and every person has different requirements for their application and we work with you to create a piece of equipment that works for you. Whether it be a detachable auger rack or hidden alloy ramps, your build is unique and the end product will not only look amazing but save you time and money.

Getting to know you

Whether it be over the phone, at our workshop or yours, our machinery trailer builders will work with you to define what best suits your needs. Getting to know your business, equipment and your needs we can design a trailer that perfectly suits your needs.

Aggregate Trailer Mass (ATM)

Aggregate trailer mass, or ATM, is the total mass of the laden trailer when carrying the maximum load recommended by the manufacturer. This includes any mass imposed upon the drawing vehicle when the combination vehicle is resting on the horizontal supporting plane.

To work out a maximum payload, give us a call to discuss.

Your quote

Once we have all your requirements, we will send out a quote specific to your needs. Our detailed quote gives you the peace of mind nothing has been missed.

At this stage you can further tailor your trailer with a price list of optional extras. If there is anything not on the list you would like to chat to us about, we are up to the challenge so please feel free to give us a call.

Ultimate Plant Trailers purchase pack

Congratulations on your decision to custom build your trailer with Ultimate Plant Trailers.

Working with you on the finer details of your build, we will provide you with a detailed purchase pack and help with any further questions you may have.

Lastly, we will be in touch to confirm we have received your deposit. At this time we will confirm your build date and expected delivery.

Engineering and design

Once your order is confirmed the design process begins to produce 2D and 3D CAD drawings as per your specifications. These will be sent to you for approval.

At this time you have a virtual layout of your custom trailer and the opportunity to make any changes.

The build

Working off full shop CAD drawings specific to your trailer, our commitment to quality starts to become obvious. Once fabrication has finished the trailer goes through our in-house QA process before moving into the next stage.

Please feel free to request photos at any stage during trailer fabrication or organise a time with our office to come and view the progress.

Your trailer is Class 2 sandblasted on site. Although we use all new steel on our machinery trailers, all steel comes with impurities and imperfections. Sandblasting best prepares the trailer for a great painted finish.

The trailer is then coated in a PPG Barrier Epoxy Primer and finished with PPG Barrier 625 2 PAC paint. This product stands up to all conditions, giving our trailer finishes a long life span.

The final stage of the build is fit out. Once complete the trailer goes through final QA, laser wheel alignment and road testing.

Approximately 10 days prior to completion of the trailer our office will contact you to make final arrangements for a smooth transition on pick up day.


The day has arrived! There are many options to get your trailer on the road and we can work with you to organise transport interstate or overseas, or you can pick up from our workshop in North Geelong.

Pick up is easily our favourite method of handover as we can shake your hand and walk you through your new investment. No need to worry if you can’t make it to us, we will send you a comprehensive manual specific to your trailer.

If you have any questions we are only a phone call away. We will always do our best when it comes to after-sales service and keeping you up to date with changing legislation and requirement through our plant trailer builders’ blog and social media.

Stay in touch

We love to hear from you, whether good or bad news we always strive to improve in any area. Over the years our Ultimate Plant Trailers community has continued to grow and with each day we are better because of our clients and their experience with our product.

12. Upt Tri Axle Trailers On Show Befor Delivery
12. Upt Tri Axle Trailers On Show Befor Delivery
Get A Quote