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"
13'6"
53' (1)
28'6"
Not Specified
but trailers are
limited to 28'6" each
22,400
36,000
80,000
State/Provincial Weight & Size Limits
Steering Axle
(lb.)
Single Axle
(lb.)
Tandem Axle
(lb.)
Gross Vehicle Weight
(lb.)
22,400
22,400
36,000
80,000
Width
Height
Straight Truck
Semi-Trailer
Full Trailer
Tractor &
Semi-Trailer
Tractor &
Semi-Trailer & Full
Trailer
Tractor & Triples
Other/Specials
(2)
13'6"
40'
48' (3)
48'
65'
65' (4)
Not Permitted
Seasonal weight
limits apply
(1) Trailers of 48' to 53' require no more than 43' spacing from kingpin to center of rear axle.
(2) 102" on designated truck access highways and highways outside NYC with 10' or more lane widths.  96" elsewhere.
(3) 53' trailers allowed on designated access highways only.
(4) Full and semi-trailers in doubles not to exceed 28'6" each.