How to Optimize Weight Distribution Between Two Trailers

When considering how to distribute the weight between two trailers while loading a standard double with 20,000 pounds of cargo, it is important to ensure that the weight distribution is optimized for both safety and legal compliance.

The ideal distribution depends on various factors, including the weight limits for each axle, the design of the trailers, and the dynamics of the truck-trailer system on the road.

Typically, the weight should be distributed to conform to the weight limits for each axle given by transportation authorities. Spreading the weight evenly between the two trailers can help provide a balanced load which could prevent issues with handling and braking while the vehicle is in motion.

A common rule of thumb is to place slightly more weight on the front trailer. This is because the front trailer typically carries the weight of the connection to the tractor and has a larger effect on the steering and handling of the entire vehicle. Having too much weight on the rear trailer could lead to instability and potentially dangerous situations such as trailer sway.

As for the observation of a trailer bouncing up and down slowly on a highway, it is more likely that the trailer is nearly empty, because a heavily-loaded trailer would have less bounce due to the damping effect of the cargo mass. An empty or lightly loaded trailer has more tendency to bounce due to having less mass to resist the spring action of the vehicle's suspension system.