The maximum widtth for a European truck is 2.5 metres and 2.6 metres for a fridge trailer. US trucks are no wider. These width limits do not include the mirrors.
I have found that getting out of a truck cab on some ferries does involve an impersonation of Spiderman. I have a recollection that the width of a truck lane is around 3.5 metres. Lanes in car-only decks are about a metre narrower

On the calculation sheets I've seen the lane width is 2.55m which is the maximum size of an EU truck. However trucks in different parts of the world can be larger, e.g. US and Caribbean. The point about all the unitised cargo measurements is that they are all nominal, the a perhaps useful for comparing sizes but they do not reflect the actual carrying capacity of the vessel. For example a container ship may have a nominal capacity of 20000 TEU. But it would only ever be able to carry 20000 TEU if all the containers were for the same destination, and loaded to exactly the same weight. And all 20ft long. The actual working capacity of the vessel would probably be around 10% less due all the varying factors that come into play. It's a complex area, load plans are done by computer because of that, doing them by hand would take too long.

Lane metre measurements do not involve the width of the lanes.

Paul, that nails my point completely...but if we see indication of Lane Length, which I think is still being used, what width do we have to take into account?

Which is why, within the car trade, CEU is rarely used. It's a nominal value, which has no practical day to day use.

Thanks Paul, that I fully understand, it is just that the width of ANY modern car is well over the definition used in the CEU. The Japanese do not export many KEI cars, as far as I know.

That, Pieter depends on the mix of vehicles carried. It's very rare to have a shipment of exactly the same vehicles, even if shipping just, for example, VAG vehicles, it's usually a mix. A computer programme is used to work it all out, using actual dimensions, with a very small margin for width for the driver to get out of the car if necessary. The loading is done so as the get each row as close together as possible, with just the last row with a gap for the drivers to get out. However it doesn't always work out, and margins are allowed to ship a few extra if they can be fitted on, or a few less if necessary.

Thanks Paul, it is not even length that I am worried about but the width of modern cars is invariably over 1.65 to 1.70, so 800 CEU might even be far less than 3200 meters.

Thanks gents...interesting conversation that followed..

It is Pieter, that's exactly what is used. However it's probably an outdated measurement, lane meters is what those in the trade use. Easy conversion a CEU is 4m long, so 800 ceu is 3200 lane meters. These vessels regularly call at Grimsby, and the number of vehicles carried varies considerably by each voyage, depending on the mix of models. When the load calculations are being made, lane meters are what is used.

What car is used as a standard for a CEU? A 1.5 metre wide and 4 metre long Toyota Corolla as built in 1966?

830 according to Lloyd's Register

Brett, KESS says 850 CEU.

Brgds,
Aleksi

What's her CEU capacity ?

;-) Really cute - My first thought was "Oh, she's still young and will certainly be growing anymore."

Cute ! She even has a ramp for the F-35's ;-) ;-)