Flat Deck Trailers in Perth

A flat deck trailer is used across a wide range of industries and freight types wherever the open platform design is an advantage. Common applications include transporting palletised general freight, steel beams and building materials, concrete products, agricultural equipment, mining machinery, and oversized loads that would be difficult to load into an enclosed trailer.

The open deck also makes a flat deck trailer a practical choice for container transport when combined with 3-way container pins, and its versatility means a single unit can handle a broad mix of freight types across different jobs throughout the week.

Each flat deck trailer in the AAA Trailers Perth range is equipped with K-Hitch tri-axle airbag suspension as standard.

The Flat Top B Trailer 22 Pallet is rated to 45–47 tonnes ATM and 20–23.5 tonnes GTM, with a 9.2-tonne tare. Flooring is 3mm–5mm forklift-rated chequer plate depending on model, and all flat deck trailer models measure 2.5 metres in width — available across standard widths suited to Australian road regulations.

The 45-foot extendable model features a high tensile steel mainframe with a full length 5mm chequer plate floor, tri-axle airbag suspension, and extends from 13.72 metres to 21.4 metres. All models are assembled with Australian Standards Approved Steel and come standard with 3-way container pins for secure container transport.

Yes. Each flat deck trailer in the AAA range is built with a high-tensile steel mainframe and tri-axle running gear rated to 45–47 tonnes ATM, making them well suited to mining, civil, demolition, and heavy equipment applications. The forklift-rated chequer plate floor and coaming rails handle demanding loads up to the trailer's full ATM rating, and all units are assembled with Australian Standards Approved Steel for the structural integrity required on WA's toughest freight routes.

The 45-foot extendable flat deck trailer is designed for freight that exceeds the length of a standard fixed-deck trailer — long steel sections, oversized civil components, and structural materials that can't be safely overhung on a shorter deck. The extendable mechanism allows the deck length to increase to suit the load, keeping the cargo fully supported and securely restrained. This avoids the cost and complexity of sourcing a specialist trailer for occasional long loads. Contact our Perth team to discuss available extension lengths for your specific freight requirements.

Flat deck loads must be secured in compliance with Main Roads WA requirements, which are actively enforced — with over 50 callouts per week across WA attributed to unsecured or poorly secured loads. AAA Trailers' flat deck trailer models are built with multiple tie-down points and full length anchor rails along the deck to support complete load securement. Operators are responsible for selecting and applying appropriate restraints (chains, straps, binders) suited to the load type and weight. For loads wider than 2.5 metres, additional marking and in some cases permits are required before travelling on public roads.

Yes. The combined height of the trailer deck and load must not exceed 4.3 metres on WA roads. Because a flat deck trailer has a higher deck surface than drop deck or low loader trailers, tall machinery and oversized equipment needs to be measured carefully before loading to confirm the combined height stays within this limit. If your load would exceed 4.3 metres on a flat deck, a drop deck trailer is likely the more appropriate option. Our Perth team can help you work out which trailer type suits your load dimensions.

The open platform design means a flat deck trailer can be loaded from the side, rear, or top, with no walls or structure to work around. Forklift loading from either side is the most common method for palletised freight and general cargo. Crane loading from above is used for heavy or awkward items like steel beams, precast concrete panels, and machinery. This flexibility significantly reduces loading time compared to enclosed trailers and makes flat decks a practical choice across varied freight types and site environments.

The 3-way container pins fitted to AAA Trailers' flat decks allow ISO shipping containers to be securely locked to the deck in multiple positions, accommodating 20ft and 40ft containers. The pins engage with the corner castings on the container base, preventing movement during transport. This makes the flat top a capable and flexible container transport platform without requiring any additional fitment or modification.

A Lead (A) trailer is the forward unit in a multi-trailer combination, connecting directly to the prime mover via a fifth wheel coupling. A B-trailer is the second unit in a B-train configuration, coupling to the rear of the A-trailer via a second fifth wheel. The B-trailer in AAA Trailers' flat deck range carries 22 pallets and is designed to work seamlessly as part of a road train or B-double setup. If you're running multi-trailer configurations for high-volume freight, both units are available through our Perth workshop.

AAA Trailers' flat deck trailer range comes with a selection of optional extras you can add at the time of order to match your specific freight and fleet requirements.

Gates — side gates are available as an optional extra across the A-trailer, B-trailer, and extendable models, providing side containment for loads that benefit from lateral support.

Spare wheel options include a steel spare wheel ($550) or alloy spare wheel ($700), both supplied with spare wheel holders to keep the wheel securely mounted to the flat deck trailer.

Additional extras include road train kits, ring feeders, custom paint with coaming rails, hard-wired flashing beacons, road train signage, and hub odometers.

Contact our Perth team to confirm which extras are compatible with the model you're ordering.

Yes. AAA Trailers delivers flat deck trailer units across Australia from our workshop network. We have locations in Perth, Sydney, Melbourne, Adelaide, and Brisbane, so whether you're based in metro Perth or interstate, we can arrange delivery of your flat deck trailer to your location. Stock units are available for prompt delivery, while custom builds generally take up to three months from deposit. A spare wheel (steel or alloy) can be included with your order before dispatch. Contact our Perth team on 1300 333 888 or visit our Brisbane location for enquiries from Queensland-based operators.

Yes. Flexible financing options are available across our range of flat deck trailers for sale in Perth. You're welcome to send your preferred finance broker to inspect the unit before purchase. Contact our Perth team on 1300 333 888 to discuss what's available.

All AAA Trailers flat deck trailers come with a 12-month warranty covering manufacturing defects and faulty workmanship under standard use and maintenance. Pre- and post-sales support is available through our Canning Vale workshop in Perth.

Visit our contact page and fill out the enquiry form, call us on 1300 333 888, or come into our Canning Vale workshop. We'll work through your freight type, load dimensions, and any specific configuration needs to match you with the right unit from our range.