Master Carton
Also known as: Master Case, Shipper Carton, Outer Carton
Definition
A master carton is the outermost shipping box used to contain and protect products during transportation and storage. It typically contains multiple inner packs or individual units and is the standard handling unit for wholesale, distribution, and retail shipments.
Master Carton Hierarchy
Master Carton (outer)
├── Inner Pack (middle)
│ └── Individual Unit
├── Inner Pack
│ └── Individual Unit
└── Inner Pack
└── Individual Unit
Master Carton Information
Standard labeling includes:
- Product name/description
- UPC/GTIN barcode
- Quantity (units per carton)
- Dimensions and weight
- Country of origin
- Lot/batch number (if applicable)
- Handling instructions
Master Carton Specifications
| Specification | Typical Range |
|---|---|
| Weight | 20-50 lbs (carrier limits) |
| Dimensions | Fit standard pallet (40" x 48") |
| Material | Corrugated cardboard (single to triple wall) |
| Units per carton | Varies by product |
Master Carton Design Considerations
Protection
- Product fragility
- Stacking requirements
- Environmental factors (moisture, temperature)
- Transit handling
Efficiency
- Pallet configuration (Ti x Hi)
- Cube utilization
- Easy opening for retail
- Sustainable materials
Compliance
- Retailer requirements
- Carrier weight limits
- Labeling standards
- Hazmat requirements (if applicable)
Master Carton vs. Inner Pack
| Aspect | Master Carton | Inner Pack |
|---|---|---|
| Purpose | Shipping/warehouse | Retail/consumer |
| Quantity | Multiple inners | Multiple units |
| Durability | Heavy-duty | Standard |
| Labeling | Wholesale info | Retail-ready |
Master Carton Optimization
- Right-size for efficient palletization
- Balance weight vs. cube
- Consider retailer shelf-ready requirements
- Design for sustainable materials
- Minimize damage in transit
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