Why is it risky to stack cargo higher than the sides of an open trailer without additional securement?
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Correct answer to question 356 (General Knowledge): Cargo above the trailer's sides has less support and can shift or fall more easily in a turn
Why
Cargo stacked above the trailer's sideboards or rails loses the lateral support those structures provide, making it more likely to shift or fall during a turn or sudden maneuver.
Updated: November 2026