Multiplier Value
Numerical scaling of the theoretical load capacity of a shipping container accounts for the real-world hazards of transit and storage. In distribution logistics, the packaging safety factor compensates for factors like humidity, stacking duration, and handling shocks. The factor adjusts the required compression strength of a corrugated box upward from the static weight it must support.
This adjustment ensures that the box survives long-term storage in a humid warehouse.
Structural Calculation
Determination of the necessary top-to-bottom compression strength of a corrugated fiberboard box relies on the McKee formula combined with this multiplier. When the packaging safety factor is too low, the bottom boxes in a stack buckle under the sustained load. The factor usually ranges from three to eight, depending on the severity of the logistics chain.
If the shipment involves maritime transport in unventilated containers, the factor must be increased to offset the loss of board stiffness caused by high humidity. This approach prevents catastrophic stack failure during international transport.
Risk Mitigation
Balancing the cost of paperboard against the risk of product damage requires careful selection of this coefficient. Applying an excessive packaging safety factor leads to over-packaging, which increases material costs and transport weight. Optimization efforts use distribution tests to determine the minimum safe value for each supply route.
