"Helping you understand how weights are calculated..."

It is particularly important that all motorhome customers understand how weights are calculated and how certain weight allowances can change whilst other weights are fixed.

A. Maximum Authorised Weight

The Maximum Authorised Weight (MAW) is exactly what it says, this weight is fixed and is a total weight of the vehicle when fully loaded, it is a weight which should not be exceeded. The vehicle is designed to operate perfectly safely at the MAW, however exceeding this weight may lead to prosecution and your insurance cover being void.

B. Mass in Running Order

The mass in running order (MRO) is the unladen weight of a standard vehicle, but this advertised weight includes 75kg for a driver and the weight for the diesel assuming the tank is 90% full and also the weight of the fresh water in the fresh water tank assuming it is 90% full, it also includes a weight for two gas bottles and the weight of the gas should it be 90% full.

The difference between A and B...

The difference between A and B is the weight available to you, for the carrying of passengers, personal belongings and the fitting off any optional extras.

Only by consciously reducing the amount of water, fuel and gas carried, can you reduce the MRO and therefore have more load allowance available to carry extra personal belongings or choose to have additional optional equipment fitted.

(The weight guide of liquids – 1 litre of liquid = 1 kg)