GlossaryEN1 min readUpdated: Jun 22, 2026
Load Unit Optimization System
A load unit optimization system is software that automatically calculates the most efficient way to fill pallets, containers, or vehicles, based on the dimensions, weights, and characteristics of the goods to be shipped.
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Definition & Explanation
A load unit optimization system is software that automatically calculates the most efficient way to fill pallets, containers, or vehicles, based on the dimensions, weights, and characteristics of the goods to be shipped. It applies weight limits, stacking restrictions, stability requirements, and shipper-specific rules, outputting a three-dimensional loading plan that warehouse staff or drivers can follow directly. Such systems are either integrated into warehouse management or transport management platforms (WMS/TMS) or deployed as standalone planning tools. They reduce freight costs, eliminate wasted space, and lower per-shipment carbon emissions. They differ from route optimisation systems, which assign stops to vehicles but do not determine how cargo is physically arranged inside the load unit.
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