Caravan Wheel Sizes & Dimensions 2026

Getting your caravan wheel sizes and dimensions right is one of those jobs that doesn't feel exciting until something goes wrong on a dusty stretch between Birdsville and Mount Isa. The correct rim diameter, stud pattern, offset and load rating keep your van tracking true, protect your hubs and bearings and make sure your tyres are actually carrying the load they're rated for.

Before you pick a set, check your caravan's compliance plate, measure your existing setup, and work out how much of your payload the wheels and tyres are supporting. A wheel that looks the part but under-rates your GTM is a fast track to trouble on any Big Lap.

Caravan wheels in 2026 come in 4 common rim sizes:

1. 13 inch (approximately 33 cm diameter)
2. 14 inch (approximately 35.6 cm diameter)
3. 15 inch (approximately 38.1 cm diameter)
4. 16 inch (approximately 40.6 cm diameter)

There are 2 common caravan wheel configurations:

1. Steel Sunraysia (pressed or fabricated steel)
2. Alloy (cast or flow-formed aluminium)

Understanding Caravan Wheel Dimensions

Before diving into specific sizes, it helps to understand the five key measurements that define every caravan wheel. Getting any one of these wrong can mean a wheel that doesn't fit, vibrates on the road, or fails under load.

Cross-section view showing the five key measurements you need to match

13 Inch Caravan Wheel Sizes & Dimensions

A 13 inch rim is the smallest size you'll typically see under an Australian caravan and is most at home on pop-tops, camper trailers and lighter weekend vans. It suits a first time setup that lives in coastal caravan parks or ticks off the occasional run along the Great Ocean Road, rather than one tackling serious corrugations in the Kimberley.

Steel Sunraysia 13 Inch

Steel Sunraysia 13 inch rims sit at around 33 cm in diameter, with a typical rim width of roughly 11.4 cm to 12.7 cm.

They're usually paired with a 155R13C light truck tyre rated to about 600 kg per tyre. Stud patterns are most often 5-stud Ford (5 x 114.3 mm) or HT Holden (5 x 108 mm), with a centre bore around 75 mm and offsets in the +15 mm to 0 mm range.

Alloy 13 Inch

Alloy options in 13 inch are less common in 2026, but where available they share the same rim widths, stud patterns and centre bores as their steel counterparts. The main benefit is a small reduction in unsprung weight per corner, which is handy on a lighter camper where every kilogram of payload counts.

14 Inch Caravan Wheel Sizes & Dimensions

The 14 inch rim is the workhorse of the Australian caravan scene. It suits most single-axle tourers up to around 2000 kg ATM and is the most common fitment on pop-tops, family weekenders and smaller full-height vans heading off for a long lap of the country.

If you're touring sealed roads and well graded gravel, this size is hard to beat for value and tyre availability.

Steel Sunraysia 14 Inch

Steel Sunraysia 14 inch rims are around 35.6 cm in diameter with a typical width of 15.2 cm, an offset in the +15 mm to 0 mm range and a 75 mm centre bore on 5-stud patterns.

They're commonly fitted with 185R14LT 8-ply tyres rated to about 850 kg, or 195R14LT 8-ply tyres rated to about 950 kg. Stud patterns include 5-stud Ford, 5-stud HT Holden, 5-stud HQ Holden (5 x 120.65 mm) and 6-stud Landcruiser (6 x 139.7 mm).

Alloy 14 Inch

Alloy 14 inch caravan wheels share the same common stud patterns, rim widths and tyre options as the steel versions. The main difference is a lighter overall wheel and a more finished look, which is why you'll see them under a lot of premium family vans touring the east coast and tropical north Queensland.

15 Inch Caravan Wheel Sizes & Dimensions

Step up to a 15 inch rim when you're towing a larger single or dual-axle tourer, or when you want a taller, more forgiving tyre sidewall for gravel and semi off-road tracks. It's a popular size for family vans heading through the Victorian high country and for grey nomads who want a little more tyre to soak up long stretches of corrugated road on the way to their next free camp.

Steel Sunraysia 15 Inch

Steel Sunraysia 15 inch rims are around 38.1 cm in diameter with a typical width of 15.2 cm. Centre bores and offsets mirror the 14 inch range.

Tyre pairings include 185R15 light truck tyres rated to about 875 kg, and 205/70R15C 8-ply tyres rated to about 950 kg per tyre. Stud patterns are most often 5-stud Ford or 6-stud Landcruiser.

Alloy 15 Inch

Alloy 15 inch wheels offer the same fitment envelope as steel but in a lighter package. They're a favourite on semi off-road vans where owners want to drop a little unsprung weight while still running tough light truck tyres in 205/70R15C or 235/75R15LT.

16 Inch Caravan Wheel Sizes & Dimensions

16 inch rims are the default for full off-road vans, larger dual-axle tourers and anyone planning to tackle the Savannah Way, Cape York or serious outback corrugations. The bigger rim allows a taller, tougher tyre, higher load ratings and better heat dissipation on long hot days of highway towing in the middle of an Australian summer.

Steel Sunraysia 16 Inch

Steel Sunraysia 16 inch rims are around 40.6 cm in diameter and are commonly available in 15.2 cm or 17.8 cm widths. The stud pattern is almost always the 6-stud Landcruiser 6 x 139.7 mm pattern, with a centre bore of approximately 110 mm and offsets typically at 0 mm or -13 mm.

Tyre pairings include 235/75R16 light truck tyres in 10-ply construction, with per-tyre load ratings commonly between approximately 1,150 kg and 1,285 kg depending on the specific tyre and rim combination.

Alloy 16 Inch

Alloy 16 inch wheels are popular on premium off-road models. High load rated alloy rims such as the CSA Monster and Jackal ranges are rated up to 1,250 kg per rim, which equates to around 2,500 kg on a single-axle van or up to 5,000 kg on a dual-axle rig.

Caravan Wheel & Tyre Size Chart

Common Australian caravan rim sizes, dimensions, tyre pairings and load ratings

Tyre and wheel pairing details

Common stud patterns (PCD)

Pitch circle diameter must match your hub exactly

How to Identify Your Caravan Stud Pattern

If you're not sure which stud pattern your caravan runs, you can identify it with a quick measurement. Use a vernier calliper or ruler to measure the distance between the centres of two adjacent studs. The small difference between patterns is enough to tell them apart.

Steel Sunraysia vs Alloy Wheels

The choice between steel and alloy comes down to budget, trip style and how much payload you can afford to use on wheels. Here's how they compare across the factors that matter most on the road.

Minimum Per-Tyre Load Rating

The simplest way to check whether your wheels and tyres are up to the job is to divide your caravan's Gross Trailer Mass by the number of wheels on the ground. Each tyre needs to carry at least that figure, with a safety margin on top for corrugated roads and hot conditions.

How to Read Caravan Tyre Sidewall Markings

Every caravan tyre has a string of numbers and letters moulded into its sidewall. Understanding what they mean helps you pick the right replacement and check that your tyre's load rating actually matches your van's weight.

Which Caravan Wheel Size Do I Need?

Use the table below to find the recommended rim size for your caravan based on its ATM, the roads you travel and your axle configuration.

5 Additional Caravan Wheel Considerations

1. Stud pattern (PCD) match: Your new wheels must match your hub's pitch circle diameter exactly. Common caravan patterns are 5 x 114.3 mm Ford, 5 x 108 mm HT Holden, 5 x 120.65 mm HQ Holden and 6 x 139.7 mm Landcruiser.
2. Load rating against GTM: Divide your caravan's Gross Trailer Mass by the number of wheels on the ground. Each wheel and tyre combination needs to carry at least that figure, with a sensible safety margin for corrugated roads and hot bitumen.
3. Centre bore and hub fit: A centre bore of around 75 mm is typical on 5-stud caravan hubs, while 6-stud Landcruiser hubs use a larger centre bore of approximately 110 mm. A wheel that rides on its studs rather than its hub bore can vibrate and loosen over time.
4. Offset and clearance: On 5-stud patterns, offsets usually sit in the +15 mm to 0 mm range. On 6-stud 16 inch Landcruiser pattern wheels, 0 mm to -13 mm is standard. Changing offset alters track width and can foul mudguards, chassis rails or brake components.
5. Spare tyre interchange: Matching your caravan's wheel pattern to your tow vehicle gives you an extra usable spare on remote tracks, which is genuinely handy when you're half a day from the nearest town.

Spare Tyre Interchange: Caravan to Tow Vehicle

One of the smartest moves you can make before heading remote is matching your caravan's stud pattern and rim diameter to your tow vehicle. Two interchangeable spares between van and 4WD is a genuine safety upgrade. Here's how the most common Australian tow vehicles line up.

Top 5 Tips for How to Choose Caravan Wheel Size and Style

Wheel choice is one of the few upgrades that touches compliance, safety and aesthetics all at once, so it pays to take your time and check the numbers twice before you hand over any money.

1. Start with your compliance plate
   Check your caravan's ATM, GTM and axle ratings before you shop. These figures dictate the minimum load rating each wheel and tyre combination must meet, and they're non-negotiable under Australian road rules.
2. Respect the payload budget
   Steel Sunraysia rims are tough and affordable but heavier than alloy. Across four corners plus a spare, switching to alloy can claw back a useful chunk of payload for water, food and gear on a long trip.
3. Match your tyres to your trip style
   Bitumen and light gravel tourers are well served by 14 or 15 inch rims with 8-ply light truck tyres. If corrugations and rocky tracks are on the cards, a 15 or 16 inch rim with a 10-ply light truck tyre gives you tougher sidewalls and higher load ratings.
4. Consider spare compatibility
   Where possible, align your caravan's stud pattern and rim diameter with your tow vehicle. Two interchangeable spares between van and 4WD is a real safety upgrade on remote tracks and a common choice for grey nomads heading outback.
5. Don't skimp on the fifth wheel
   Your spare should match the rest of the set in size, load rating and age. A mismatched spare is fine for a crawl to a caravan park, but it's not something you want to rely on halfway across the Nullarbor.

Choosing the right caravan wheel sizes and dimensions comes down to matching rim diameter, stud pattern and load rating to your van's ATM, your trip style and your tow vehicle. Browse our full range of caravan wheels and tyres or check out related caravan hubs and bearings to complete the setup before your next trip.