RV Trailers Get Longer

Effective on September 27, 2022 RV trailers with a 5th wheel hitch and a GVW of less than 10,000 kg may be up to 14.65 m (48 feet) long. This is an increase from the old length limit of 12.5 m (41 ft). The total length of the trailer and tow vehicle must not exceed 19 m (62 ft 4 inches) in length.

Maximum Dimensions for 5th Wheel RV Trailers

Quote From the Circular

There has been a need for some time to have RV trailer weight and dimension limits be harmonized across Canada and that the trailer length limit be increased to 14.65 m. The majority of RV trailers sold in Canada are manufactured in the United States and are designed to comply with state regulations for weights and dimensions. The popularity of longer RV trailers is, in part, a reflection of changes made in a number of US state regulations to increase the length limit.

For consistency in policy for recreational vehicles nationally, the Federal Memorandum of Understanding (MOU) was updated by all provinces except British Columbia, by the Vehicle Weights and Dimensions Task Force with an amendment in February 2022 to reflect the following allowable overall length for RV trailers under 10,000 kg GVW.

British Columbia has completed an extensive review of its’ road networks and is now
confident in signing on to the agreement for additional length to RV Trailers with a 5th Wheel Hitch as reflected in the national MOU.

Vehicle Dimensions

Perhaps the simplest way to get advice before you set out on your trip is to know your exact dimensions and contact the nearest weigh scale. The inspectors there will provide expert advice and some scales are always open for your call.

Learn More

• Compliance Circular 01-22 (amended June 17, 2025)
• CSA Z240 RV Series 23 Standard

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