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Legal Allowable Gross Loads

Select the appropriate table below:

TABLE A-B. Weight Limits on Interstate System routes for Special Products:
Logs, pulpwood, stull, poles or piling; ores, concentrates, sand & gravel, and aggregates thereof, in bulk; unprocessed agricultural products, including livestock.

TABLE C-J. Weight Limits for Loads exceeding 79,000 lbs on Interstate & 80,000 lbs on non-Interstate routes

TABLE K-L. Weight Limits, up to 80,000 lbs for all commodities on non-interstate system routes

*** Load for inch width of tire for the front steer axle may not exceed the manufacturer's load rating per tire or the load rating of the axle or twenty thousand (20,000) pounds per axle whichever is less. The maximum allowable load for all other vehicle tires operated on any public highway shall not exceed six hundred (600) pounds per inch width of tire and shall not exceed the manufacturer's load rating, whichever is less. The width of a tire shall be determined by the manufacturer's description marked on the sidewall of the tire. Tires on vehicles manufactured prior to July 1, 1987, may exceed the six hundred (600) pounds per inch width of tire limit subject to a maximum of eight hundred (800) pounds per inch width of tire. This section shall not apply to nonreducible overweight and/or oversize vehicles and/or loads as authorized under section 49-1004, Idaho Code.
Page Last Modified: 8/5/2015 2:09:57 PM

Division of Motor Vehicles / Commercial Vehicle Services
Ports of Entry- (208) 334-8688
Motor Carrier- (208) 334-8611
Overlegal Permits- (208) 334-8420
or 1-800-662-7133

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Idaho Transportation Department
3311 W. State Street ยท P.O. Box 7129
Boise, ID 83707-1129