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"
14'0"
59'6"
28'6"
Not Specified
but trailers are
limited to 28'6" each
20,000
34,000
80,000
State/Provincial Weight & Size Limits
Steering Axle
(lb.)
Single Axle
(lb.)
Tandem Axle
(lb.)
Gross Vehicle Weight
(lb.)
20,000
20,000
34,000
85,500
Width
Height
Straight Truck
Semi-Trailer
Full Trailer
Tractor &
Semi-Trailer
Tractor &
Semi-Trailer & Full
Trailer
Tractor & Triples
Other/Specials
102"
14'0"
42'6"
including
overhangs
59'6"
Not Specified
No Limit
28'6" each trailer
Allowed on
designated routes
only
Truck & Trailer 65'