What is the legal maximum length for a trailer in most jurisdictions?

In most jurisdictions, the legal maximum length for a trailer is 53 feet. This standard length has been established due to regulations set by the U.S. Department of Transportation and is commonly observed for commercial trucking. The 53-foot length allows for efficient transportation of goods while still maintaining safety and maneuverability on the roads. This standard also helps streamline operations across state lines, as it is widely accepted, minimizing confusion and compliance challenges for trucking companies.

While other lengths are permissible in certain contexts, such as 45 feet for specific types of trailers or configurations, the 53-foot maximum is predominant in the industry for large freight carriers, providing the best balance between capacity and compliance.