The word ‘horsebox’ refers to a trailer with a compartment or transporting horses. However, in the UK it can also refer to a motorised vehicle that has been modified to carry horses. They are used regularly on UK roads and form an important part of many equestrian-related businesses, such as farming, equestrian sports and breeders. Insuring your horsebox is a legal requirement, and the best horse trailer insurance companies will be able to advise you on a number of potential features to include in your policy depending on your specific needs.