The American Driver
From Drivers...For Drivers
National Weight & Size Provisions
Width
Height
Semi-Trailer in
Tractor-Semi-Trailer Combo
Full Trailer
Doubles
Single Axle
(lb.)
Tandem Axle
(lb.)
Gross Vehicle Weight
(lb.)
102"
14'6"
53'
40'
65'
20,000
34,000
80,000
State/Provincial Weight & Size Limits
Steering Axle
(lb.)
Single Axle
(lb.)
Tandem Axle
(lb.)
Gross Vehicle Weight
(lb.)
Not Specified
20,000
34,000
95,000 (1)
Width
Height
Straight Truck
Semi-Trailer
Full Trailer
Tractor &
Semi-Trailer
Tractor &
Semi-Trailer & Full
Trailer
Tractor & Triples
Other/Specials
102"
14'6"
40'
53'
40'
65' (2)
65' (3)
Permit Required
Restricted Routes
Seasonal Weight
Limits Apply
(1)  Refer to bridge chart.
(2)  Not specified if trailer is 53' or less.
(3)  Not specified if semitrailer and full trailer is 65' or less, including any connecting devices.