Trucking Legal Height Limits by State

Understanding legal truck height limits is critical for planning freight shipments across the United States. Each state sets its own maximum height regulations, and exceeding these limits without the proper permits can result in fines, delays, or route restrictions. This map provides a quick visual reference for the maximum legal trailer and load height by state, helping carriers, shippers, and brokers avoid compliance issues when moving flatbed, step deck, or oversize freight.

Keep in mind that legal height includes the trailer and cargo combined. For details on the deck height of different trailer types, visit our Trailer Types and Specs page. Always check with state authorities for the most current DOT height restrictions.