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'
28'
Not Specified
but trailers are
limited to 28' each
22,400
34,000
80,000
State/Provincial Weight & Size Limits
Steering Axle
(lb.)
Single Axle
(lb.)
Tandem Axle
(lb.)
Gross Vehicle Weight
(lb.)
Not Specified
22,400
34,000
80,000
Width
Height
Straight Truck
Semi-Trailer
Full Trailer
Tractor & Semi-Trailer
Tractor &
Semi-Trailer &
Full Trailer
Tractor & Triples
Other/Specials
96" (1)
13'6"
40'
48' (2)
48'
Not Specified
if trailer is 48' or less
(3)
Not Permitted
None
(1) 102" on designated routes.
(2) 53' trailers allowed on designated access highways only.
(3) Allowed only on Interstate and Designated routes.