GU Rate
When the "GU Rate" module is activated, you will see a GU section in the order form. The GU (general contractor) calculates the transport costs from A to B. Additionally, GU Ignore Flags can be set to further configure the calculation.
GU Ignore Flags can be set to exclude certain attributes from the calculation by default.
The basis for the calculation is always the "most expensive", based on which values are available:

Normally the calculation is based on "weight"; all others apply a standard conversion to weight, which can be more expensive depending on the goods. For example, if you have light but extremely large goods, this costs more because the transport is more difficult. Using the Ignore Flags, you can specify that, for example, the area should never be considered, even if it would be more expensive.
There are also special rates — for example, if goods over 3m in length are transported, a surcharge is automatically calculated. This can also be overridden via the Ignore Flags.