Every overseas vehicle shipment starts with this decision, and getting it wrong costs money in one direction or damage in the other. This is how the two methods actually differ, when each one wins, and why the choice is often made for you by the destination rather than by preference.
What roll-on roll-off actually is
On a roll-on roll-off sailing the vehicle is driven aboard under its own power, parked on a vehicle deck alongside hundreds of others, and lashed to the deck for the crossing. No container is involved at any point. The ships are purpose-built with internal ramps and multiple decks, and they call at dedicated vehicle terminals rather than ordinary container berths.
That design is what makes RoRo cheap. There is no box to buy space in, no lifting equipment, and the vehicle is handled in minutes rather than loaded and secured individually. Billing follows the same logic: you pay for the deck space the vehicle occupies, usually calculated from its length, width and height, which is why a compact car costs meaningfully less than a full-size pickup.
What container shipping actually is
In container shipping the vehicle is driven or winched into a steel box at a loading warehouse, chocked, strapped at the wheels or suspension, blocked so it cannot move at sea, and the doors are sealed. From that moment nobody touches the vehicle again until the box is opened at destination.
Billing works differently. You are buying the container, not the space the car occupies, so the price is broadly the same whether the box holds one vehicle or four. That single fact drives most of the decision.
How the two compare
| Point of difference | Roll-on roll-off | Container |
|---|---|---|
| How it is billed | On the space the vehicle occupies | On the container, regardless of contents |
| Cost for one vehicle | Usually lower | Usually higher |
| Cost for three or four | Multiplies by unit | Splits across the units |
| Non-running vehicles | Generally not accepted | Winched in, routine |
| Salvage and damaged units | Often refused | Normal cargo |
| Parts and accessories | Not permitted inside the vehicle | Permitted when declared |
| Exposure in transit | Open or semi-open deck, shared space | Sealed, untouched after loading |
| Handling events | Driven on and off, moved within the deck | Loaded once, unloaded once |
| Port requirement | Dedicated vehicle terminal both ends | Any container terminal |
| Sailing frequency | Fewer services, less flexible | Far more services on most lanes |
When roll-on roll-off wins
One running vehicle, going to a port with a dedicated vehicle terminal, where the buyer is price-sensitive and the car is an ordinary used unit rather than something irreplaceable. On those facts RoRo is usually the right answer and paying for a whole container would be waste.
It also suits oversized single units that would not fit a container at all, such as a large truck, a bus or a tall piece of plant that can be driven aboard.
When container wins
The vehicle does not run. RoRo generally requires the unit to drive aboard under its own power. A seized engine, a stripped auction car or a flood-damaged vehicle has to go in a box.
The vehicle is valuable or original. A restored classic on a shared open deck is exposed for the whole crossing and handled by people who do not know it. Sealed in a container it is loaded once by people who do.
Parts are travelling with it. Engines, panels, trim and boxed spares can be declared and loaded alongside the vehicle in a container. RoRo does not permit loose items inside or around the vehicle.
More than one vehicle is moving. The economics invert quickly, as above.
The destination has no RoRo service. This is the one people miss.
The destination often decides for you
Roll-on roll-off only works where a dedicated vehicle terminal exists at both ends and a carrier actually runs the service. Plenty of ports that handle containers weekly see a RoRo vessel rarely or never. On those lanes the choice is not a preference at all, it is container or nothing.
Anyone quoting you a RoRo rate to a port with no RoRo service is quoting something that will not sail. Ask which vessel and which terminal before you accept a price that looks unusually low.
What neither method includes
Both are port to port. Neither includes getting the vehicle from the seller or auction to the loading port, and neither includes anything at destination: port and terminal charges, customs duty, clearance, or inland delivery. Those are the receiver's account on both methods, and they are often larger than the ocean freight itself.
A quote that looks cheap is frequently a quote that has left something out. Ask what is included before comparing two numbers.
How to decide in practice
Answer four questions in order. Does the vehicle run under its own power? How many units are moving? Is anything travelling with the vehicle? Does the destination have a genuine RoRo service?
Those four settle almost every case without any further analysis. Where they leave the answer genuinely balanced, price both and compare like for like, including everything each price contains.
What is the difference between RoRo and container shipping?
On roll-on roll-off the vehicle is driven aboard a purpose-built vessel and parked on a deck with other vehicles, with no container involved. In container shipping the vehicle is loaded into a steel box at a warehouse, braced, sealed, and not touched again until destination. The billing differs too: RoRo charges for the space the vehicle occupies, container charges for the box.
Which is cheaper, RoRo or container?
For a single running vehicle, roll-on roll-off is usually cheaper because you pay for the space the car occupies rather than a whole container. From two or three vehicles upward a shared container is normally cheaper per unit, because the container price is split across the vehicles inside it.
How is RoRo priced?
On the deck space the vehicle occupies, generally calculated from its length, width and height. That is why a compact car costs less than a full-size pickup on the same sailing, and why the exact measurements of the vehicle matter to the quote rather than just its value or weight.
How is container shipping priced?
On the container itself, not on what is inside it. A 40ft high cube costs broadly the same whether it holds one car or four, which is why filling the box is the single largest saving available to anyone moving more than one vehicle at a time.
Can a non-running car go by RoRo?
Generally no. Roll-on roll-off requires the vehicle to drive aboard under its own power, so a car that will not start has to travel in a container instead. In a container it is winched in rather than driven, which is entirely routine and adds equipment rather than complication.
Can I ship parts or belongings with the vehicle?
In a container yes, provided everything is declared on the export filing. On roll-on roll-off no, because loose items inside or around the vehicle are not permitted. Undeclared goods packed inside a vehicle are one of the most common causes of clearance problems anywhere in the world.
Which is safer for a classic or high-value car?
Container, without much argument. On roll-on roll-off the vehicle sits on a shared deck for the whole crossing and is handled by people who do not know it. Sealed in a container it is loaded once, braced properly, and untouched until the doors open at your port.
At how many vehicles does container become cheaper?
It varies by lane, but the break-even is commonly around three vehicles and sometimes as low as two. Because the container is priced as a box, each additional vehicle lowers the cost per unit, while RoRo simply multiplies. The only way to know for a specific lane is to price both.
Why is RoRo not available to every port?
Roll-on roll-off needs a dedicated vehicle terminal at both ends and a carrier running the service. Many ports that handle containers every week see a RoRo vessel rarely or never, so on those lanes container is not a preference, it is the only method that actually sails.
Does either method include destination charges?
No. Both are port to port. Port and terminal charges, customs duty, clearance and inland delivery at the far end are for the receiver's account on both methods, and they are frequently larger than the ocean freight. A quote that seems unusually cheap has often left something out.
Can oversized vehicles use RoRo?
Often yes, and it is one of RoRo's genuine advantages. A large truck, bus or tall piece of plant that would never fit inside a container can be driven aboard a vehicle vessel. The limit is whether it can move under its own power and clear the deck height.
Import rules change. The customs information on this page comes from official government sources and was accurate when published, but duties, age limits and eligibility requirements are set by the destination country and can change without notice. Cassandra Logistics is a licensed ocean carrier, not a customs authority or a legal adviser. We are not responsible for changes to foreign import law, or for decisions made by customs at destination. Always confirm current requirements with a licensed customs agent in the destination country before you buy a vehicle.