How Much Ground Clearance Do You Actually Need? A Real-World Guide to Caravan Traversability
Ground clearance is one of those caravan specs that gets listed in a brochure and rarely examined. That is a mistake. It is the number that determines whether you drive through a creek crossing or stop at the bank.
Whether a corrugated track is a manageable inconvenience or a source of underbody damage. Whether the campsite at the end of the access road is accessible or theoretical. This guide covers where the Australian market sits on ground clearance, what each level actually handles in the field, and what separates a genuine clearance spec from a marketing number.
Ground Clearance vs Wading Depth: Two Different Specs
These two get used interchangeably. They measure different things.
Ground Clearance
Distance from the lowest fixed point of the underbody to the ground. Determines whether the chassis scrapes on raised obstacles — ridges, rocks, pothole edges, creek lips.
Wading Depth
Maximum water level the van can cross safely. Requires ground clearance plus waterproofed sealing, sealed wiring routes, and correctly positioned electrical components.
A van can have adequate ground clearance and still fail a water crossing if the wiring layout puts vulnerable components below the waterline. Clearance gets you over the obstacle. Engineering keeps you running on the other side.
Where the Market Sits: Three Clearance Tiers
The Australian caravan market splits into three practical tiers on ground clearance. Industry guidance generally sets 450mm as the benchmark for strong traversability — below 400mm, the risk of chassis scraping on gravel, potholes, and uneven terrain increases significantly.
| Tier | Ground clearance | What it handles | Typical price range |
|---|---|---|---|
| Standard | Under 400mm | Maintained sealed and gravel roads, light unsealed tracks. Not recommended for corrugations or water crossings. | Lower to mid |
| Enhanced traversability ★ | 450mm–500mm | Independent suspension, reinforced chassis. Handles corrugations, uneven terrain, and light wading. The practical sweet spot for most long-distance Australian travel. | Mid to upper |
| High traversability | 550mm–650mm+ | Adjustable air suspension, purpose-built for complex terrain. Wider capability, but higher build cost and maintenance overhead. | Premium / custom |
At the top end, premium expedition builds like the Bruder EXP-6 reach 650mm through adjustable air suspension — genuine high-traversability figures, at six-figure USD pricing that reflects a different buyer entirely. For the vast majority of serious Australian long-distance travellers, the 450mm–500mm range with solid independent suspension already covers nearly every real-world scenario.
"Ground clearance is not just about what you can get over. It is also about what happens to the underbody over thousands of kilometres when you repeatedly operate below the margin."
Departure angle is the other number worth checking. Industry benchmark sits at a minimum of around 40 degrees — below that, vans are prone to tail-dragging on undulating tracks where the ground rises behind the drawbar as the van descends.
What Insufficient Clearance Actually Does
The consequences of low clearance rarely show up in a car park. They show up at the 80km mark of a corrugated dirt road, or at a creek crossing after rain.
- Underbody damage, accumulated over time: water lines, cabling, and waste plumbing sit in the low-clearance zone and take repeated impacts on corrugated or rocky roads. The damage is often invisible until something fails.
- Bottoming out on obstacles: raised ridges, pothole edges, and creek lips can scrape or structurally damage the chassis on a single crossing.
- Capped wading depth: ground clearance sets the ceiling on how deep you can safely wade. Low clearance restricts your options at any water crossing.
- Warranty grey areas: many manufacturers distinguish between on-road and off-road use tiers. If conditions exceed the van's design intent, warranty claims become contentious — and the outcome rarely favours the buyer.
Matching Clearance to How You Actually Travel
Under 400mm
Maintained sealed and gravel roads. Established campground access tracks. Not designed for consistently rough terrain, corrugations, or water crossings. If this is your van's ceiling, those scenarios are outside its design intent — regardless of what the sales conversation implies.
450mm–500mm
The practical sweet spot for most serious Australian touring. Handles corrugations, general uneven terrain, and light-to-moderate water crossings. Paired with independent suspension and proper underbody protection, this range covers nearly every scenario a long-distance traveller encounters — national parks, remote camp access tracks, creek crossings on the Victorian High Country and across the Kimberley.
550mm and above
Built for the highest traversability demands: complex terrain, deep water crossings, expedition-grade remote travel. The trade-off is a taller overall profile, more complex air suspension systems, higher purchase cost, and greater maintenance overhead. Appropriate for a specific buyer. Excessive for most.
Solid 16: 480mm Ground Clearance · 480mm Wading Depth
The Solid 16 lands at 480mm ground clearance and 480mm verified wading depth — upper end of the enhanced traversability bracket. Among caravans at a comparable size and price point, that combination of clearance and wading depth is uncommon. One figure is a chassis measurement. The other is a confirmation that the sealing and wiring layout can actually back it up in the water.
How the Solid 16 achieves it — four engineering decisions:
- One-piece composite fibreglass shell — no J-mould seam joins that open under repeated road vibration. The shell is structurally sealed as a single unit, removing a primary water ingress path at its source.
- No battery under the chassis — the Solid 16's battery is not chassis-mounted below the clearance line. The only low-position wiring beneath the van is a fully waterproofed electric brake cable — no exposed connectors, no vulnerable junction points.
- 2-hour high-pressure spray test — every unit is verified for sealing integrity before delivery. Not a sample test. Every unit.
- Local ADR certification and real-world validation — clearance, suspension behaviour, and wading figures are validated against actual Australian road conditions — not carried over from overseas test data.
The result for a buyer: fewer concern points at a creek crossing, fewer breakdown risks from underbody damage over time, and access to more of the places that make touring worthwhile.
| Solid 16 — Key figures | |
|---|---|
| ATM: | 2,980kg |
| Tare mass: | from 2,250kg |
| Ball weight: | 180kg |
| Price: | from $68,000 AUD |
| Ground clearance: | 480mm |
| Wading depth: | 480mm |
The Bottom Line
Ground clearance is not an isolated number. It is the result of chassis design, suspension geometry, component placement, and sealing engineering working together. A brochure figure is a starting point, not a verdict.
The questions worth asking: How was this number achieved? What sits below the clearance line? How was wading depth tested, and on which units? What happens to the underbody after 50,000 kilometres of corrugated dirt?
The Solid 16's 480mm clearance and 480mm wading depth are backed by a one-piece composite shell, a clean underbelly wiring layout, and a spray test on every unit off the line. That is what a verified spec looks like.
See the underbody engineering in person.
Visit the Periple RV showroom in Pakenham. We are happy to walk you through the build, the specs, and what makes it worth the investment — no pressure, no hard sell.
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