Overhang changes how cartons carry load
Corrugated cartons are generally strongest when their edges are supported. When a case hangs beyond the pallet deck, the unsupported edge can deform and lose stacking strength.
Overhang also exposes cartons to forklift, rack and adjacent-load contact. A layer that looks space-efficient on paper may create more damage in handling.
Retail and warehouse rules may prohibit it
Many receiving programs specify no overhang or define exact pallet-quality requirements. Noncompliant loads can be refused, reworked or charged back.
Use the customer's routing guide as a design input. A calculator should default to the permitted deck footprint rather than assuming a small overhang is acceptable.
Fix the carton system upstream
If a recurring SKU leaves poor pallet utilization without overhang, evaluate master-carton dimensions, count per case or pack orientation. Packaging design and pallet design should be treated as one system.
Model transport savings against packaging cost and product protection before changing a case specification.
Spot the hidden overhang in a proposed pattern
Three 41 cm carton edges in a row require 123 cm. On a 120 cm deck, that row overhangs by 3 cm in total, or 1.5 cm at each end if centered. Calling it a three-carton row because the product drawing said 40 cm has hidden the actual packed dimension.
With 41 × 30 cm cartons on a 120 × 80 cm pallet, the two no-overhang uniform grids each hold four cartons. The overhanging 3 × 2 arrangement would hold six, but those extra two cases do not make the pattern acceptable. Resolve the receiving requirement and packaging design instead of silently expanding the deck in a worksheet.
Reproduce the calculation
Use the related Cargoivo calculator with your own shipment dimensions, weight, or quantity.
Open Pallet Calculator →Cargoivo provides educational planning information, not a freight quote, engineering approval, customs advice, or carrier commitment. Verify current service rules, equipment specifications, and commercial terms before shipping.