An overweight surcharge is an additional freight fee applied when cargo exceeds the standard weight limits for a container, truck, trailer, axle group, or carrier service. The surcharge helps cover extra fuel, permits, equipment strain, routing restrictions, handling requirements, and safety risks associated with heavy shipments. In ocean, road, rail, and drayage logistics, overweight cargo may also require special approval, legal weight checks, or specific equipment before it can move. It applies to ocean containers, air freight, and truck shipments, with limits set by carriers, terminals, or road regulations. Shipments that exceed standard size limits rather than weight limits may instead incur an oversize surcharge.
Common Overweight Thresholds
- Ocean FCL: standard 20-foot container weight limit is approximately 21,700 kg net cargo (varies by carrier)
- U.S. road transport: standard gross vehicle weight limit is 80,000 lbs; overweight permits required above this
- Air freight: volumetric and actual weight both considered
Always verify the container weight before stuffing to avoid overweight surcharges and customs or port fines for exceeding legal limits.
Related terms: Accessorial Charges, LCL, Bill of Lading.
