3.5m Tri-Axle
Drop Deck Widener Trailer
Every 3.5m widener is manufactured in Ballarat using high strength steels and local suppliers and services. We back your trailer with a 5-year structural warranty and an industry-leading lead time as low as 8 weeks.
Brimarco 3.5m wideners can be found across Australia operating in the most remote regions and harshest conditions.
There is no substitute for a design that has stood the test of time. Refined through over decades of continuous improvement and real-world performance, the Brimarco 3.5m widener is built for operators who value a no-nonsense, dependable asset that has already proven itself across millions of kilometres of Australian roads.
Everything you can do with a standard drop deck… but more. Pick up those bigger jobs without needing to break the bank on a specialized heavy-haulage rig. This design ensures your asset stays on the road more often, handling a wider variety of contracts with a single, multi-purpose trailer. Keep the hay haulage, container transport and palletised freight, but add the versatility of overwidth capability.
With a low deck height of 0.975m on 19.5” wheels and tyres, maximise your payload height and minimise your centre of gravity. Still looking to go lower? Talk to us about options
Go Stronger. Go Brimarco Trailers.
Brimarco’s Drop Deck Widener Trailers are Australian designed and manufactured solutions engineered for heavy haulage across demanding conditions. Built in Ballarat, Victoria, these high-performance drop deck widener trailers deliver exceptional strength, durability and versatility—making them ideal for transporting oversized and over-width loads across agriculture, civil and transport industries.
With flexible deck widening from 2.5 to 3.5 metres a low deck height under one metre and a heavy-duty construction built to last, each trailer is designed to maximise payload capability while maintaining stability and compliance. Backed by a five-year structural warranty and industry-leading lead times as short as 8 weeks, Brimarco offers a reliable, cost-effective alternative to traditional low loader trailers—built tough for Australian operators who demand performance.
Specifications
| Payload | 25t at full width |
| ATM | 44,000 kg |
| GTM | 25,000 kg |
| Deck Width | 2.5m – 3.5m |
| Deck Height | 0.975 m |
| Deck Lengths | 13.3m (45ft model), 13.7m (46ft model), 14.3m (48ft model) |
| Overall Lengths | 13.65m (45ft road train compliant), 14m (46ft), 14.6m (48ft); custom lengths available on request |
| Axle Config | Tri-Axle |
| Availability | Made to order, call to check ex-rental/stock units |
| Est. Lead Time | 8 Weeks (dependent on current production schedule) |
| Australian Designed and Built | Designed, engineered and manufactured in Ballarat Victoria. Proudly Australian Made. |
| Main Rails | 350 grade webs and flanges; 20mm lower flange, 16mm upper flange |
| Coaming Rails | 200mm and 125mm PFC with 22 chain bars |
| Flooring | 5mm 700G on decks and ramps with 31 in-deck tie down points |
| Chain Points | 31 in-deck tie-down points; 22 coaming chain bars |
| Tyre Carrier | Tyre carrier suited for 19.5” spares |
| Front Gate | 1600mm high heavy-duty gate |
| Rear Ramps | Heavy-duty ramps; 2950mm x 900mm box tube with a 5mm 700 grade steel plate surface and welded grip strips |
| Upper Ramps | Aluminium 3-piece flip-over |
| Paint | Fully sandblasted, primed, and finished in two high quality 2-pack paint, with a choice of colours |
| Suspension | Fuwa K Hitch mechanical tri-axle suspension with 19.5” 8 stud hubs |
| Hydraulics | Dual acting heavy-duty 3” cylinders fit with premium valves and 12V power pack |
| Landing Gear | 2 Speed Fuwa K Hitch landing legs |
| Wheels | Steel painted rims with 265/70 19.5” tyres |
| Electrics | 175A Anderson plug, 12V lead acid battery, multi-volt LED lighting with beacon |
| Toolbox | Powder coated lockable toolbox with stainless door (1200mm x 350mm x 400mm) |
| Water Tank | Polished 60L aluminium water tank |
| Oversize Signage | Custom spring-loaded flip-over signs |
| Flag Holders | Front and rear flag holders |
Aggregate Trailer Mass (ATM) is the total maximum weight of a trailer when unhitched, including its payload. Gross Trailer Mass (GTM) is the maximum weight supported by the trailer’s axles when hitched to a vehicle.
Optional Trailer Features
- Custom Lengths available to suit your specific requirements.
- Alloy Wheels: Lightweight, durable, and corrosion-resistant, providing improved performance, fuel efficiency, and a sleek appearance.
- Air Suspension available on all drop deck trailers (standard on 4m widener models).
- Spare Wheels & Extra Toolboxes can be added to all models, including in-deck toolboxes. Tyre carriers come standard on all trailers.
- Gate Pockets, Upper Deck Tie Downs, and 3-Way Twistlock Pedestals for versatile load securing.
- Extra-Wide or Bi-Fold Ramps for improved access and loading.
- Winches for emergency breakdown situations or additional load handling.
- Stainless Steel Coaming Rail Protectors: Durable and corrosion-resistant, these protectors shield coaming rails from damage caused by heavy loads, impacts, and daily wear
Resources & Downloads
Brimarco-Tough-As-3.5m-Ultra-Low-Drop Deck Widener Spec Sheet |
Dimensions
| Length | Deck | Other | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Model | OL | DL | TD† | BD | BT | DH | KH | KP | SC | AC | AS | RO |
| Road Train | ||||||||||||
| CRF | 13.73 (45ft) | 13.4 | 4.3 | 9.1 | 0.55 | 0.975 | 1.27 | 1.43 | 2.4 | 9.3 | 1.4 | 3.0 |
| Standard | ||||||||||||
| CAF | 14.08 (46ft) | 13.7 | 4.3 | 9.45 | 0.9 | 0.975 | 1.27 | 1.43 | 2.4 | 9.3 | 1.4 | 3.35 |
| Maximum | ||||||||||||
| CMF | 14.63 (48ft) | 14.3 | 4.3 | 10 | 0.9 | 0.975 | 1.27 | 1.43 | 2.4 | 9.5 | 1.4 | 3.7 |
Legend
Note: All dimensions are listed in metres (m)
†Top deck length includes flip over ramp in position shown. For custom lengths or other special requirements please contact Brimarco directly. ^Payload refers to engineered structural capacity. On-road limits depend on local regulations and vehicle configuration. *5 Year Warranty applies to structural defects only.
Frequently Asked Questions
A drop deck widener trailer is designed to transport oversized and over-width loads, including agricultural machinery, construction equipment and general freight. The widening deck allows operators to safely carry larger loads while maintaining stability and compliance on Australian roads.
Brimarco drop deck widener trailers can expand from a standard width of around 2.5 metres up to 3.5 or 4 metres, allowing operators to adapt the trailer to suit different load sizes and transport requirements.
Brimarco offers industry-leading lead times, with new drop deck widener trailers available in as little as three months—significantly faster than many custom trailer manufacturers
All Brimarco drop deck widener trailers are Australian designed and manufactured in Ballarat, Victoria with materials and services from local suppliers, ensuring high-quality construction and solutions tailored to local operating conditions.
Drop deck widener trailers offer a lower deck height—often under one metre—making them a cost-effective alternative to low loaders for taller equipment. They also provide greater versatility, allowing operators to switch between standard and oversized loads without needing multiple
Use Cases
- Header / Combine Harvester Transport
- Excavation Equipment Transport
- Forestry Equipment Transport
- Large Tractor Transport
- General Freight
Brimarco Customer Testimonials
Why Choose Brimarco?
Australian Design
Every Brimarco trailer begins with Australian design thinking. Developed in Ballarat to suit local conditions, machinery and road networks. Purpose-built solutions ensure optimal performance, durability and compliance from day one.
Australian Engineering
Engineered in-house using advanced modelling and real-world testing, Brimarco trailers are designed for strength, stability and reliability, delivering high-performance transport solutions for demanding agricultural and civil applications.
Australian Manufacturing
Built in Ballarat, Victoria, each trailer is manufactured with precision and care using high-quality materials, ensuring consistent quality, faster turnaround times and equipment you can rely on in the field.
Local Support
When you work with Brimarco, you deal directly with the people who design and build your trailer. That means faster answers, practical advice and genuine support when you need it most.
Over 50 Years Experience
Backed by decades of industry experience, Brimarco combines proven knowledge with modern innovation, delivering custom trailers and custom movable facilities that are trusted to perform across Australia’s toughest conditions.
Genuine People
We believe in straight answers and strong relationships. Our team takes a hands-on, honest approach, always working closely with our customers to deliver solutions that suit their operation, not a standard specification sheet.
See It in Action
Real Brimarco builds and the customers who use them.
Enquire Now
Fill out the form below and we will be in touch.
