Size and Weight
Size and Weight Limits - Wyoming Constitution title 31 chapter 18 - Commercial Vehicle weight limits.
Width: 8 1/2 ft.
Height: 14 ft.
Length: 60 ft - single unit, or semi-trailer in a truck-tractor semi-trailer combination 81 ft - semi-trailer, trailer combined length in truck-tractor, semi-trailer, trailer combination including connecting mechanism
(48 ft. - maximum for semi-trailer)
(40 ft. - maximum for trailer)
Single axle: 20,000 lbs.
Tandem axle: 36,000 lbs.
Triple axle: 42,000 lbs.
Each wheel: 10,000 lbs.
Each tire: 700 lbs. per inch of width on steering tires, 600 lbs. per inch of width on other tires.
Interstate - 117,000 lbs. - Table I by formula
Primary & Secondary - 117,000 lbs. - Table I by formula
Primary & Secondary - 80,000 lbs. - Table II For more information regarding size and weight click the size and weight limits link above and refer to Wyoming Statutes 31-18-802.