What’s the legal minimum tread depth for tyres on your trailer or caravan?

Explanation: Trailers and caravans may be left in storage over the winter months, and tyres can deteriorate. It's important to check their tread depth and also their pressures and general condition. The legal tread depth of 1.6 mm applies to the central three-quarters of a tyre's breadth, over its entire circumference.

Category: Safety and your vehicle

References: The Official DVSA Guide to Driving: Section 14, Highway Code: Page 129