NEWS & EVENTS with JAWA Off Road Campers
When it comes to off-road caravanning, most people focus on features such as suspension, tyres and interior comfort. But one of the most important components of any caravan sits beneath the van itself: the chassis.
The chassis is the structural backbone of a caravan. It supports the full weight of the van, carries your gear, and absorbs the constant impacts of off-road terrain. If you plan to take your caravan beyond sealed highways and deep into the remote outback for the ultimate adventure, the strength and design of the chassis will make a significant difference to durability and safety.
Why Chassis Strength Matters Off-Road
The role of a caravan’s chassis is far greater than simply holding the structure of the van together. When travelling off-road, the chassis works to absorb the impacts of uneven terrain and the vibrations from corrugated roads, all whilst supporting the weight of the caravan itself. And don’t forget water tanks, batteries, camping equipment and everything else you bring on your trip. This is why many experienced off-road adventurers look for a chassis that is stronger than what might typically be considered ‘strong enough.’
Scotty from JAWA Campers says: “At JAWA, chassis strength is non-negotiable. We fit all our caravans with a 150x50x4mm hot-dipped galvanised steel chassis designed specifically to handle the demands of serious off-road travel. When it comes to chassis construction, we believe stronger is always better.”
Hot-dipped galvanised steel has other benefits besides strength. Off-road caravans are frequently exposed to harsh conditions, including mud, saltwater, sand and debris. Many caravans have a painted steel chassis, but when driving on beaches or gravel roads, sand and dirt can grind the protective paint coating away. Once the steel underneath is exposed, it becomes susceptible to corrosion.
Hot-dipped galvanised steel offers a significant advantage. During the galvanising process, the steel is coated in molten zinc, which bonds to the metal itself. This means the protective layer is integrated into the steel rather than sitting on top like paint, providing far greater long-term rust resistance. A hot-dipped galvanised steel chassis is included across the JAWA range.
Common Caravan Chassis Types
Not all caravan chassis are built the same. Several different materials and designs are used throughout the industry, each with its own advantages and limitations.
Aluminium chassis
Aluminium chassis are popular because they are lightweight, which can help to reduce the overall weight of a caravan, improve fuel efficiency and allow smaller tow vehicles to handle the load more comfortably. We know, however, that aluminium has limitations when it comes to heavy off-road use, and repeated stress from uneven terrain can lead to metal fatigue over time. Aluminium is also susceptible to galvanic corrosion if it comes into contact with other metals such as steel.
Standard hot-dipped galvanised steel chassis
A 120mm x 50mm galvanised steel chassis is commonly used in caravans designed for general touring. The size alone provides good structural strength and corrosion resistance, making it suitable for highway travel and light off-road use on gravel roads or well-maintained tracks. It offers a good balance between durability and weight. However, it lacks the performance durability of a heavy-duty chassis.
Heavy-duty galvanised steel chassis
For serious off-road adventures, opt for a 150x50x4mm hot-dipped galvanised steel caravan chassis. The increased structural support helps distribute the stressors of off-roading, while comfortably supporting the weight of the van, supplies, batteries and all of your travel gear. Superior durability provides peace of mind during remote off-road travel.
Painted steel chassis
Despite its drawbacks, painted steel remains a common option within the caravaning industry. While the steel itself provides strong structural support, the painted coating is the only defence against corrosion. Once the paint layer is compromised, the exposed steel can begin to rust, particularly in coastal or wet environments. For caravans used primarily on sealed roads, this may be less of a concern, but for off-road travellers, additional corrosion protection is not only preferable but highly recommended.
Punched steel chassis
A newer development in caravan construction is the punched steel chassis. This design uses strategically punched holes throughout the steel rails to reduce weight while maintaining structural strength, with a goal to create lighter caravans that assist with fuel efficiency and allow for smaller vehicles to tow them. Whilst this chassis design is showing promise, many caravan manufacturers remain cautious about its long-term durability in heavy off-road conditions.
The Best Caravan Chassis is Built For Any Adventure
Ultimately, the best caravan chassis depends on how and where you plan to travel. For sealed highways and occasional gravel roads, many chassis designs will perform well. But if your travel plans include remote off-road locations, heavily corrugated roads, rocky river crossings or beach four-wheel driving, you’ll want a caravan chassis that can handle the rugged demands.
In these environments, strength, durability and corrosion resistance are non-negotiable. A robust chassis built from hot-dipped galvanised steel will provide the structural confidence you need. When you’re hundreds of kilometres from the nearest town, the last thing you want to worry about is what’s happening underneath your van. That’s why we equip our off-road campers with a chassis that can go the distance.
JAWA Off Road Campers is a 100% owned and operated Australian company based on the beautiful Sunshine Coast in Queensland. With the significant growth in our brand over the last few years, we have recently branched out and opened a new showroom and service centre in Sydney NSW, so even more Aussie
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