Question 1

What is the difference between MIRO and MTPLM?

Accepted Answer

MIRO (Mass in Running Order) is what the caravan weighs empty with standard equipment. MTPLM (Maximum Technically Permissible Laden Mass) is the maximum legal weight the caravan can reach when fully loaded.

Question 2

Does water in the tanks count towards the payload?

Accepted Answer

Yes, any water stored in your fresh or waste tanks adds weight to your caravan and must be included in your final payload calculation.

Question 3

Can I upgrade my caravan's payload capacity?

Accepted Answer

In some cases, manufacturers offer a chassis upgrade or a weight plate upgrade, but this must be done professionally and re-registered to be legal.

Caravan Payload Calculator