Used 18t Horseboxes for Sale in the UK

A 18.0 tonne horsebox and a 18.0 ton horsebox both refer to the same weight class vehicle, but the wording depends on country:

• Tonne (metric tonne) - used in the UK and Europe
• 1 tonne = 1,000 kg
• The correct term for horseboxes in the UK is usually 18.0 tonne
• Ton (imperial ton) - used mainly in the USA
• 1 ton = 907 kg
• Not generally used in UK vehicle classifications

Because horseboxes in the UK are regulated using metric measurements, a 18.0 tonne horsebox is the accurate term for listings, insurance, road tax, driving licence rules, and DVLA documentation.

Before you buy a second hand or used 18.0 tonne horsebox, inspect the chassis and floor for rust or rot, check the ramp mechanism and horse area for safety and wear, verify the vehicle's paperwork (V5C, MOT history, service records), and take it for a test-drive to assess engine and mechanical condition.

For a detailed checklist, see our horsebox and trailer buyers guide..

An 18 tonne horsebox sits at the premium end of the market. Value is driven by build quality, chassis condition, living specification, horse area layout and overall condition. Professional coachbuilt bodies on well-maintained chassis command higher prices, while older or less well-specified builds sit lower in the range.

Prices vary significantly depending on specification, so it is important to compare similar listings and verify the vehicle's condition before making an offer.

Payload is the difference between the Maximum Authorised Mass (MAM) of 18,000 kg and the unladen weight of the horsebox. Most 18t horseboxes offer a payload between 5,000 and 8,000 kg, though this varies depending on the build specification.

An 18t horsebox can carry four to six horses with generous living accommodation, tack storage, and equipment space. These larger lorries are typically chosen by professional riders, competition yards and owners transporting multiple horses regularly.

Always check the VIN plate for the exact unladen weight, and consider using a public weighbridge to confirm the real figure before you buy.

You need a full Category C (HGV) licence to drive an 18 tonne horsebox. A standard Category B car licence only covers vehicles up to 3,500 kg, and even C1 entitlement (which covers up to 7,500 kg) is not sufficient for an 18t lorry.

Obtaining a Category C licence requires a medical examination, a theory test (including the hazard perception element) and a practical driving assessment in a vehicle over 7,500 kg. You must already hold a Category B licence before applying.

If you plan to tow a trailer behind an 18t horsebox, you will need C+E entitlement, which requires a further practical test.

For a full breakdown, see our Horsebox Driving Licence Requirements in the UK guide.