What is considered an oversized vehicle?
A vehicle is considered oversized if it has a gross weight rating (GVWR) over 10,000 lbs. and the vehicle exceeds the legal weight for that vehicle. Vehicles exceeding 8′ 6″ in width, 14′ in height and/or exceeding 40′ in length for a single vehicle. Also considered oversize are, semi trailers in excess of 53 ft. and double trailers in excess of 61 ft. When exceeding these limits, permitting is required to travel in Washington State. Some permitted vehicles may travel when traction/chains are required. Contact WSDOT Commercial Vehicles Office at (360) 704-6340 to determine if permitting is required and which vehicles are exempted.
