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Maine RV length limits

Maine's limits for motorhomes, trailers, triple towing and height, quoted from its own law. Enter your rig to check it.

The law in Maine

Motorhome: 45 ft
"The following maximum length limits apply to tiny homes, trucks, trailers and recreational vehicles and include permanent or temporary structural parts of the vehicle and load, but do not include refrigeration units or other nonload-carrying appurtenances permitted by federal regulation. ... A vehicle may not exceed 45 feet, except as provided in this section."
Trailer: 45 ft
"The following maximum length limits apply to tiny homes, trucks, trailers and recreational vehicles and include permanent or temporary structural parts of the vehicle and load, but do not include refrigeration units or other nonload-carrying appurtenances permitted by federal regulation. ... A vehicle may not exceed 45 feet, except as provided in this section."
Overall combination: 65 ft
"The maximum overall length of a combination of vehicles may not exceed 65 feet unless otherwise permitted by law."
Triple towing: Not allowed
"Only one tiny home, trailer or semitrailer may be drawn by a motor vehicle, except that a combination of a truck tractor, semitrailer and full trailer may be operated on the Interstate Highway System"
Height: 13 ft 6 in
"A vehicle with a permanent or temporary structural part more than 13 feet, 6 inches in height measured vertically from a level ground surface may not be operated on a public way or bridge."
Width: 102 in (8 ft 6 in)
"A vehicle that is wider than 102 inches over all may not be operated on a public way or bridge."

29-A M.R.S. §2390, Maximum length limits, checked November 2026.

RV Length Limits by StateMaine

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Trailer length

Overall length

Height

Truck and trailer or fifth wheel · Maine

Within the limits

Yes. Your truck and trailer is within Maine's length limits.

Add your height to check it against Maine's 13 ft 6 in limit.

Trailer length
WithinYours 32 ft · limit 45 ft
"The following maximum length limits apply to tiny homes, trucks, trailers and recreational vehicles and include permanent or temporary structural parts of the vehicle and load, but do not include refrigeration units or other nonload-carrying appurtenances permitted by federal regulation. ... A vehicle may not exceed 45 feet, except as provided in this section."
Overall length
WithinYours 52 ft · limit 65 ft
"The maximum overall length of a combination of vehicles may not exceed 65 feet unless otherwise permitted by law."

Width: 102 in (8 ft 6 in)

"A vehicle that is wider than 102 inches over all may not be operated on a public way or bridge."

"In addition to the exceptions in subsection 3 , the following are excluded from the measurement of vehicle width: A. Reflecting mirrors;"

"Appurtenances on motor homes, truck campers and camp trailers, if such appurtenances extend no more than 6 inches from either side of the body of the vehicle; and"

Where to stay in Maine

30 RV parks listed in Maine.

See Maine RV parks

Common questions

RV length and towing questions

45 ft. Maine's law says: "The following maximum length limits apply to tiny homes, trucks, trailers and recreational vehicles and include permanent or temporary structural parts of the vehicle and load, but do not include refrigeration units or other nonload-carrying appurtenances permitted by federal regulation. ... A vehicle may not exceed 45 feet, except as provided in this section."

65 ft overall. Maine's law says: "The maximum overall length of a combination of vehicles may not exceed 65 feet unless otherwise permitted by law."

Not allowed. Maine's law says: "Only one tiny home, trailer or semitrailer may be drawn by a motor vehicle, except that a combination of a truck tractor, semitrailer and full trailer may be operated on the Interstate Highway System"

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