The maximum weight that a flatbed truck can haul is also limited by the regulations of the state or country in which the truck is operated. In the United States, the maximum weight that a single-axle truck can haul is 20,000 pounds. The maximum weight that a tandem-axle truck can haul is 34,000 pounds. The maximum weight that a tri-axle truck can haul is 40,000 pounds.
If the weight of the load exceeds the maximum weight that the truck is allowed to haul, the truck may be overweight and subject to fines or other penalties. It is important to carefully calculate the weight of the load before loading a flatbed truck to ensure that the truck is not overloaded.