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Pro-Line
🚚 Pro-Line Commercial Box Trailers for Sale
The Pro-Line Commercial Box Trailers from A2B Trailers represent the strongest range of 1, 2 and 3 axle commercial flatbed trailers designed for the professional user. Solid and heavily built trailers with mechanical overrun brakes, these versatile workhorses are engineered for maximum durability and ease of use.
Manufactured by Variant in Denmark, Pro-Line trailers feature wheels positioned under the box for superior control and stability. All sides are aluminium, opening and completely removable, transforming instantly into a flatbed trailer without any tools. With total max weights (ATM) ranging from 1,350kg to 3,500kg, these trailers deliver professional-grade performance for construction, landscaping, trade, and commercial applications.
🔑 Key Features
💪 Heavy-Duty Construction – solid, heavily built for professional commercial use
⚙️ Mechanical Overrun Brakes – reliable Knott self-managed braking systems (RVS/ADR compliant) - No
🛞 Wheels Under Box – superior control, low loading height, easy access all sides, low gravity.
🔧 Removable Aluminium Sides – all sides included, open and remove without tools
📏 Multiple Configurations – 1, 2, and 3 axle models available
⚖️ ATM Range 1350-3500kg – payload capacities from 570kg to 2,915kg
🔗 Integrated Fasteners – built-in lashing points for secure loads
📦 Foldaway Lashing Rings – maximum load security inside the box
🇩🇰 Danish Variant Quality – galvanised chassis, premium components
📌 Pro-Line Trailer Models by Series
P2 Series – Compact & Light-Duty Models (2.0m ATM - 1350-2000kg)
Perfect for small businesses, tradies, and light commercial work. Single or tandem axle configurations with excellent manoeuvrability.
13P215 – 1350kg ATM, compact & easy to tow, 2.54 x 1.44m
20P215 – 2000kg ATM, small tandem trailer, strong & stable, 2.54 x 1.44m
P3 Series – Medium-Duty Models (3.0t ATM - 3000kg)
The workhorse series for serious commercial operations. Tandem axle stability with impressive payload capacity up to 2,475kg.
2018 P3 – 2000kg ATM, medium-duty with solid payload, 3.15 x 1.75m
3018 P3 – 3000kg ATM, reliable for demanding work, 3.15 x 1.75m
3021 P3 – 3000kg ATM, wider 2.05m loading area, 3.15 x 2.05m
3521 P3 – 3500kg ATM, strong & stable, 3.15 x 2.05m
P4/X4 Series – Heavy-Duty Models (3.5t ATM - 3500kg)
Maximum capacity tandem axle trailers for the toughest commercial jobs. Built for construction, landscaping, and heavy equipment transport.
2018 P4 – 2000kg ATM, longer 4.15m deck for bulky loads, 4.15 x 1.75m
3018 P4 – 3000kg ATM, extra capacity for larger equipment, 4.15 x 1.75m
3021 P4 – 3000kg ATM, high payload wider deck, 4.15 x 2.05m
3521 P4 – 3500kg ATM, commercial grade 4.15m deck, 4.15 x 2.05m
3521 X4 Edition – 3500kg ATM, compact length reinforced, 4.15 x 2.05m
X5/X6 Series – Extra-Long & Extra-Wide Models (3.5t ATM - 3500kg)
Premium large-capacity trailers with extended deck length (5.15m) for oversized loads, pallets, and commercial equipment.
Compact length with 3.5t ATM capacity. Heavy-duty construction for maximum load strength in a shorter footprint.
3521 X5 – 3500kg ATM, compact length reinforced, 5.15 x 2.05m
3321 X5 – 3500kg ATM, Tri-axle compact length reinforced, 5.15 x 2.05m
3521 X6– 3500kg ATM, compact length reinforced, 6.15 x 2.05m
3321 X6 – 3500kg ATM, Tri-axle compact length reinforced, 6.15 x 2.05m
👉 Browse all Pro-Line Trailers here.
🛠 Standard Equipment
✔️ Galvanised steel chassis for durability and longevity
✔️ Knott mechanical overrun brakes (RVS/ADR compliant)
✔️ Wheels mounted underneath for low loading height
✔️ All aluminium sides – opening and completely removable
✔️ Removable galvanised corner posts (no tools required)
✔️ Integrated fasteners throughout the trailer body
✔️ Foldaway lashing rings inside for secure loads
✔️ Dual axle (tandem) or tri-axle configurations
✔️ Jockey wheel for easy manoeuvring
✔️ LED lighting system (compliant)
➕ Optional Extras & Accessories
🛤️ Loading Ramps – heavy-duty ramps for machinery & equipment loading
☂️ High Tarpaulin Cover – weather protection for enclosed cargo transport
📏 Drop Sides – additional height for bulk materials
🔒 Spare Wheel Kit – roadside emergency preparedness
🔗 Extra Lashing Straps – additional cargo securing equipment
🦶 Upgraded Jockey Wheel – heavy-duty models for rough terrain
🛡️ Mudguards – extended protection options
⚙️ Tool Boxes – lockable storage solutions
🎯 Use Cases
🏗️ Construction & Building – transport materials, tools, equipment to job sites
🌳 Landscaping & Gardening – soil, mulch, plants, equipment hauling
🔧 Trade & Services – mobile workshops, tool transport for plumbers, electricians, carpenters
🏢 Commercial Operations – deliveries, logistics, wholesale distribution
🚜 Agriculture & Farming – feed, supplies, small machinery transport
🏭 Industrial Applications – factory materials, warehouse logistics
🎪 Events & Exhibitions – equipment setup, display materials transport
🚗 Vehicle Transport – small cars, motorcycles, ATVs (with ramps)
❓ Frequently Asked Questions
Q: What does "wheels under box" mean and why is it important?
✅ Wheels are positioned underneath the trailer deck (not outside), allowing all four sides to open and remove completely. This design provides superior control, easier loading from any side, and lower loading height for heavy items.
Q: Can these trailers convert to flatbed trailers?
✅ Yes – all aluminium sides and corner posts are completely removable without any tools, instantly converting your box trailer into a flatbed trailer for oversized loads.
Q: What's the difference between P2, P3, P4, and X5 series?
✅ The numbers indicate deck length and ATM capacity. P2 series are 2.6m Long (lighter strong trailer), P3 are 3.2m long (medium use trailer), P4/X4 are 4.2m long and start the heavy-duty trailer. X5 models have extended 5.2m deck length for increased length trailer loads. X6 models have extended 6.2m deck length for maximum trailer load capacity.
Q: Do these trailers require electric brakes?
✅ No – Pro-Line trailers feature reliable Knott mechanical overrun brakes that are RVS/ADR compliant, eliminating the need for electric brake controllers and simplifying towing.
Q: What payload capacities are available?
✅ Payload capacities range from approximately 570kg (light models) up to 2,915kg (3521P3) (heavy-duty models), depending on the specific model and configuration.
Q: Are these suitable for commercial and trade use?
✅ Absolutely – Pro-Line trailers are specifically designed as the strongest range for professional commercial users. Heavy-duty construction, galvanised chassis, and Variant Danish quality ensure years of demanding service.
Q: What vehicle do I need to tow these trailers?
✅ Requirements vary by model: 1350kg ATM models can be towed by most vehicles, 2000kg by mid-size vehicles, while 3000-3500kg ATM models require a properly rated Ute, 4WD, or commercial vehicle with 3500kg towing capacity.
Q: How do the lashing points work?
✅ Pro-Line trailers feature integrated fasteners throughout the body and foldaway lashing rings inside the box. These provide multiple secure tie-down points for maximum load security without protruding when not in use.
🚀 Why Choose Pro-Line Commercial Box Trailers?
✅ Strongest Range Available – solid, heavily built for professional commercial use
✅ Superior Control – wheels under box design for easy handling
✅ Maximum Versatility – converts from box to flatbed without tools
✅ Wide Model Range – 22 different trailer models to suit any application
✅ ATM Options – 1350kg, 2000kg, 3000kg, and 3500kg configurations
✅ Width Variety – available in 150cm, 180cm, 210cm, and 250cm widths
✅ Danish Variant Quality – galvanised, durable, built to last for years
✅ Easy Loading – low height, all-side access, removable sides
✅ Reliable Braking – mechanical overrun system (no electric complications)
Looking for the strongest, most versatile commercial box trailers for professional use? Choose Pro-Line quality from A2B Trailers.
Contact A2B Trailers to order now! Visit our Central Coast office and check out the wide range of Pro-Line commercial trailers for sale today!
