Maximise every transport run with a heavy-duty 40-tonne, 48ft tri-axle flat top trailer designed for serious transport professionals.
Featuring an expansive flush-deck layout for effortless side and forklift loading, this high-performance trailer delivers the durability and versatility needed for oversize, containerised, or general freight. Invest in reliable Australian haulage power that minimises downtime and drives maximum ROI for your fleet.
Brand New Beavertail TRI Axle Seamless Flat Top Trailer
100% Australian-Made. Built to Last. Backed by 35+ Years of Experience.
Engineered for heavy machinery, steel, and general freight, our tri axle flat top trailer features seamless coaming rails for superior structural strength and effortless side-loading. Built in Ballarat using high-grade Australian steel, this flat top trailer reflects the proven quality of in excess of 1,500 trailers delivered across the country.
- 40 Tonne ATM
- 28.3 Tonne Carry Capacity
- 14.6m / 48ft Deck Length
Unmatched Performance, Tailored to You
Since 1987, Beavertail Trailers has engineered thousands of heavy-duty trailers for Australia’s toughest industries. Every trailer is crafted in Ballarat, Victoria, using Australian steel and premium components. No compromises. No shortcuts. Just relentless durability.
Base Model Specifications
Starting at $90,000 + GST
- ATM: Up to 40 tonnes*.
- Dimensions:
- Total Length:14.6m* (Truck and trailer combo compliant with 20.0m limit).
- Deck: 14.6m/48feet
- Beavertail: N/A
- Drawbar: N/A
- Width: 2.5m*.
- Chassis & Build:
- Main Chassis: Fabricated beams. 12mm Top & 20mm Bottom Flanges.
- Floor: 5mm checker plate, flush finished with in-deck tie-down points.
- Coaming Rails: Seamless with integrated tie-down points.
- Cross Members: 100TFB
- Kingpin: Dual king pin position.
- Skid plate: 10mm 350 grade skid plate.
- Axles & Suspension:
- 20.5” ten-stud axles rated to more than 22.5 tonnes in tri axle group.
- 9-leaf overslug spring suspension.
- Ramps: N/A
- Braking System: Full air brakes with EBS and auto slack adjusters.
- Wheels & Tyres:
- Steel rims.
- 11R-22.5” tyres.
- Laser axle alignment for enhanced durability and performance.
- Electrics & Lighting:
- LED multi-volt harness system with ADR-compliant signage and reflectors.
- Combination taillights.
- Electrical plug and air fittings suited to your truck.
- Paint & Finish:
- Industrial-grade two-pack polyurethane paint – your choice of colour.
- Safety & Convenience:
- 2 speed front landing leg.
- 1500mm Front drop-in hurdle.
- Stainless steel toolbox.
- Rope rail.
- 3-point sidestep at back x2.
- Mudguards with Beavertail mud flaps.
- Comprehensive owner’s manual, safety chains, and 2 years structural warranty.
*Total length, width, Carry Capacity and ATM of the trailer may vary.
Excludes stamp duty, registration, and delivery (available at cost).
Photos are for reference only, and the price applies to base variants only.
How Beavertail Defines ‘Seamless’
Seamless means the coaming rails are welded flush to the chassis with tie-down points built into the structure, no bolted joins or exposed gaps where load straps can snag or where water sits and starts the rust cycle.
The practical payoff? Faster load restraint, a cleaner working deck, and a trailer that demands significantly less maintenance over its operating life. This build philosophy extends throughout the deck, including the flush 5mm checker-plate floor with in-deck tie-down points that sit perfectly level with the floor surface.
Looking for standard rails? Compare our standard rails tri-axle flat top here.
Why Buy a Beavertail Flat Top Trailer
Beavertail Trailers has been manufacturing heavy-duty trailers in Ballarat, Victoria, since 1987. Known for quality workmanship and custom trailer solutions, we supply customers throughout Australia with reliable trailers backed by nationwide delivery and warranty support.
100% Australian Designed & ADR Compliant
Built in Ballarat, Victoria, to meet strict Australian Design Rules for severe-duty performance on tough Australian roads.
Proven Manufacturing Volume
Thousands of heavy-duty trailers have been engineered and delivered since 1987. Read what our transport clients say on our testimonials page.
2-Year Structural Warranty
Every flat top trailer comes backed by a 2-year structural warranty.
Complete Aftercare & Support
Full back-up support and technical assistance provided on every trailer manufactured in our Ballarat facility.
Frequently Asked Questions
Why buy a Beavertail flat top trailer?
Every trailer is engineered and built in Ballarat, Victoria, backed by decades of Australian manufacturing experience and over 1,500 heavy-duty trailers delivered nationwide. We construct our trailers using high-grade Australian steel to meet strict Australian Design Rules (ADR), ensuring absolute structural integrity for harsh operating conditions. Your investment is protected by a 2-year structural warranty, full aftercare support, and nationwide delivery capabilities.
What is the ATM of a tri axle flat top trailer?
Our base model tri axle flat top trailer features an Aggregate Trailer Mass (ATM) rating of up to 40 tonnes, yielding a heavy-duty carry capacity of 28.3 tonnes. Final payload ratings will vary depending on your selected deck dimensions, running gear, and custom optional inclusions.
What deck lengths can the flat top trailer be built in?
While our standard production model features a 14.6m (48ft) deck, we can build custom deck dimensions. These range from shorter 30ft configurations up to extended heavy-haul lengths, tailored to your exact freight requirements. Every build is engineered to ensure your prime mover and trailer combination remains fully compliant within Australia’s standard 20.0m overall length limit.
Can it be set up for road train use?
Yes. Our tri axle flat top trailers can be specified with an optional road train package, which includes a heavy-duty rear tow coupling along with matching air and electrical pass-through fittings. The standard build already includes a dual kingpin position to optimise weight distribution when coupled to prime movers or road train dollys.
Is trailer finance available?
Yes, flexible trailer finance is available through Yellowstone Lending Pty Ltd. Options are available for both ABN holders and individual buyers, offering competitive rates and fast turnaround times subject to standard underwriting approval.
Get Your Trailer Quote
Ready to build the right trailer for your operation? Select your preferred specifications and colours, submit your details, and our team will get back to you with a free, no-obligation quote.
Get Your Free, No-Obligation Quote Today.
