Categories: conditions



The transport offers, both national and international, are based for the correct calculation of costs, on the “weight / volume” ratio to obtain the taxable weight. The tool that allows to obtain the correct attribution of a freight is the so-called “ratio”.

Let’s start from a very simple principle to better understand the case history: a truck complete with hay (very bulky) weighs a few tons, compared to the overall capacity of the vehicle (24t). In a case like this, the real weight of the goods would not guarantee the payment of the costs incurred for transport.

How then do we understand what the correct rate is in a similar case?

A semi-trailer with a capacity of 24,000 kg has a load volume of approx. 80 m3, a platform of 13.60 meters in length and the availability of stowing 34 pallets (80 × 120 cm) or 32.64 m2 (1 EUR pallet has an area of ​​just under 1m2).


The calculation is as follows:

  • 24’000 (kg): 80 (m3) = 300 kg (1 m3 = 300 kg)
  • 24’000 (kg): 13.6 (m) = 1764 kg (1m of platform = 1764 kg)
  • 24’000 (kg): 34 (pal.) = 705 kg (1 m2 or 1 pal. EUR = 705 kg)


However, there are some offers that have a different ratio than the one mentioned, such as, for example, 1m3 = 200 kg. Quotes of this type may seem interesting but often hide – for the reasons mentioned above – obviously more expensive rates. Other cases, on the other hand, where the ratio per m2 or pallet is not applied: this frequently happens to the disadvantage of the customer to whom the freight is invoiced.

Why pay for 7 linear meters when, analyzing the shipment in detail, it would actually take up 6 linear meters? with the saving of a meter that would not be exploited.

In this case, the tariff per m2 or pallet is more congenial. It must be said, for the avoidance of doubt, that the more ratios are reported in the offer, the greater (in the sense of savings) will be the advantage for the customer.



For the so-called “oversized” packages or goods that do not have homogeneity and standards from the point of view of packaging, “linear meters” are mentioned in the offers. These are based on the very simple principle that the space occupied by a given item is compared to the maximum length occupied.

However, it may happen that the package actually has a length that generates a rate per linear meter, but its width and weight can allow you to load other goods positioned next to it. All with a view to optimizing mailings and consequently saving the customer. Also in this case it is more appropriate to apply the rate per square meter (m2).

For the sake of completeness of information, however, we must reiterate that, at times, the packages may have exceptions, due for example to the weight or shape, which necessarily must be positioned at an equal distance on the vehicle to guarantee its safety during transport (rate per meter linear).

In the complex world of shipping, everything has its own precise logic between what is transported and the volumetric weight generated. For this reason the ratios must have a proportionality between them, where a m3 has a coefficient proportionate to the m2, respectively per linear meter; all compared to the maximum weight allowed by the vehicle (as in the example cited above).

By means of the m2 or pallet tariff, or rather how much space is actually occupied on a vehicle, more targeted calculations of the taxable weight can be obtained and the savings are tangible compared to a tout-court tariff per floor meter.

Another matter, however, if we are in the presence of loose cartons that can be superimposed on each other, where the ratio to m3 would be more competitive.

Last but not least, offers based on real weight (without ratio therefore) which present risks both for the supplier, who would be forced to increase the price in the short term, and for the customer who could pay too high a freight when the fare is taxed on real weight.

Knowing the “ratios” it is possible to better understand the various cases of the freight rates generated.

Ask one of our specialists for information and updates on your rates, we will be happy to advise you in the best possible way!

Un exemple d'optimisation de charge qui présente des exceptions, dues par exemple au poids ou à la forme, avec un rapport de poids taxable calculé par mètre au sol et / ou par véhicule dédié (logiciel d'optimisation de charge Franzosini SA)

An example of load optimization that has some exceptions, due for example to weight or shape, with a taxable weight ratio calculated per floor meter and / or per dedicated vehicle (Franzosini SA load optimization software)

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