KRS 189.221: Basic height, width, length, and weight limits for trucks, trailers,

manufactured homes, or vehicles -- Exception. A person shall not operate on any highway, except those highways designated by the secretary of transportation under the pr ovisions of KRS 189.222, or those locally maintained highways under the provisions of KRS 189.222(13) or 189.230(4), any of the following trucks, trailers, manufactured homes, or vehicles:

(1) Any motor truck, semitrailer, trailer, manufactured home, or ve hicle which exceeds eleven and one -half (11 -1/2) feet in height or ninety -six (96) inches in width, including any part of the body or load;

(2) Any motor truck, except a semitrailer truck, which exceeds twenty -six and one half (26-1/2) feet in length, including any part of the body or load;

(3) Any semitrailer truck which exceeds thirty (30) feet in length, including any part of the body or load;

(4) Any truck, semitrailer truck, or truck and trailer unit which exceeds 36,000 pounds gross weight, including the load;

(5) Any truck, semitrailer truck, or tractor -trailer unit which exceeds a gross weight equal to the sum of six hundred (600) pounds per inch of the combined width of the tires upon which the vehicle may be propelled, but no more than thirty -six thousand (36,000) pounds; and

(6) Notwithstanding the provisions of this section, any truck hauling building materials under KRS 189.2226, or to a road construction project on a highway rated less than the maximum weight provided above, may haul up to eight y thousand (80,000) pounds gross weight, including the load, without a permit.