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Washington RV length limits
Washington's limits for motorhomes, trailers, triple towing and height, quoted from its own law. Enter your rig to check it.
The law in Washington
Motorhome: 46 ft
"It is unlawful for any person to operate upon the public highways of this state any vehicle having an overall length, with or without load, in excess of 40 feet. This restriction does not apply to (a) a municipal transit vehicle, (b) auto stage, private carrier bus, school bus, fifth-wheel travel trailer, travel trailer, or motor home with an overall length not to exceed 46 feet"
Trailer: 46 ft
"This restriction does not apply to (a) a municipal transit vehicle, (b) auto stage, private carrier bus, school bus, fifth-wheel travel trailer, travel trailer, or motor home with an overall length not to exceed 46 feet"
Overall combination: 75 ft
"(3) It is unlawful for any person to operate on the highways of this state any combination consisting of a truck and trailer, or log truck and stinger-steered pole trailer, with an overall length, with or without load, in excess of 75 feet."
Triple towing: Not allowed
"Except as provided in RCW 46.44.037 , it is unlawful for any person to operate upon the public highways of this state any combination of vehicles consisting of more than two vehicles."
Height: 14 ft
"It is unlawful for any vehicle unladen or with load to exceed a height of fourteen feet above the level surface upon which the vehicle stands."
Width: 102 in (8 ft 6 in)
"The total outside width of any vehicle or load thereon must not exceed eight and one-half feet"
RCW 46.44.030 Maximum lengths, Revised Code of Washington, checked November 2026.
Truck and trailer or fifth wheel in Washington. Yes. Your truck and trailer is within Washington's length limits.
Truck and trailer or fifth wheel · Washington
Within the limitsYes. Your truck and trailer is within Washington's length limits.
Add your height to check it against Washington's 14 ft limit.
Trailer length
WithinYours 32 ft · limit 46 ft"This restriction does not apply to (a) a municipal transit vehicle, (b) auto stage, private carrier bus, school bus, fifth-wheel travel trailer, travel trailer, or motor home with an overall length not to exceed 46 feet"
"(c) For the purposes of calculating the overall length of a fifth-wheel travel trailer, the measurement is the distance between the centermost point of the kingpin and the rearmost point of the vehicle, generally referred to as the rear bumper or rear cap."
Overall length
WithinYours 52 ft · limit 75 ft"(3) It is unlawful for any person to operate on the highways of this state any combination consisting of a truck and trailer, or log truck and stinger-steered pole trailer, with an overall length, with or without load, in excess of 75 feet."
Width: 102 in (8 ft 6 in)
"The total outside width of any vehicle or load thereon must not exceed eight and one-half feet"
"except that an externally mounted rear vision mirror may extend beyond the width limits of the vehicle body to a point that allows the driver a view to the rear of the vehicle along both sides"
"A width-exclusive device must not extend more than three inches beyond the width limit of the vehicle body."
More from Washington's law
"(3) A motor home or travel trailer with a cargo extension, provided that there are no trailers or secondary cargo extensions or units attached to the cargo extension."
Source: RCW 46.44.030 Maximum lengths, Revised Code of Washington, checked November 2026.
Also read on: RCW 46.44.010 Outside width limit · RCW 46.44.020 Maximum height · RCW 46.44.036 Combination of units, limitation · RCW 46.44.037 Combination of units, lawful operations
See your rig against every state's limits
A guide to each state's published law, not legal advice. Lengths are measured as each state's law says (bumpers and hitches count in most); posted signs, local roads and permits can differ. The linked law is the authority.
- Each state's own law, quoted
- Motorhome, trailer or triple tow
- Every state on your trip at once
Where to stay in Washington
28 RV parks listed in Washington.
Other states
RV length limits in other states
- Alabama
- Alaska
- Arizona
- California
- Colorado
- Connecticut
- Delaware
- Florida
- Hawaii
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Rhode Island
- South Carolina
- South Dakota
- Texas
- Utah
- Vermont
- Virginia
- West Virginia
- Wisconsin
- Wyoming
Common questions
RV length and towing questions
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