PACKAGING ENGINEERING TOOLKIT
Universal Carton Fitting Calculator
Calculate how many mono cartons, inner cartons, boxes or trays fit inside a shipper. Compare all six rotations, a mixed-orientation rectangular packing pattern, clearance, payload limits and shipment quantity.
1. Shipper internal dimensions
USE INNER SIZEEnter usable inside dimensions (not outside dimensions). Clearance is deducted from both sides of each dimension. Leave payload blank if unknown.
2. Carton types
Results by carton type
mm| Carton | Uniform | Mixed pattern | Final fit | Shippers for order |
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Mixed pattern is a practical guillotine-partition packing heuristic and may not be the absolute mathematical maximum. Final fit applies the optional payload limit.





