Box Strength & Burst Ratings (ECT vs Mullen) vs. ISO Standard Pallet Sizes
Comparing 2 standards across 14 specifications. 14 key differences identified.
Corrugated cardboard shipping boxes are legally rated under two distinct testing standards stamped inside the Box Maker's Certificate (BMC): the Edge Crush Test (ECT, measuring top-to-bottom compression stacking strength in lbs/in) and the Mullen Bursting Test (measuring puncture resistance and rough handling in lbs/sq in).
Standard shipping pallets are globally regulated under ISO 6780 into six standardized dimension footprints. The European EUR-1 pallet (800 × 1200 mm) and North American GMA pallet (48 × 40 inches / 1016 × 1219 mm) dominate over 80% of global automated warehousing and intermodal freight transport.
Specification Comparison Table
14 Parameters| Parameter / Spec | ||
|---|---|---|
|
Governing Standards
|
TAPPI T 811 / TAPPI T 810 / ASTM D2808 / NMFC Item 222 (National Motor Freight) | ISO 6780 / EPAL (European Pallet Association) / GMA (Grocery Manufacturers Assoc) |
|
Edge Crush Test (ECT)
|
Measures compressive edgewise strength (lbs/linear inch) parallel to fluting — predicts pallet stacking capacity | — |
|
Mullen Bursting Strength
|
Measures hydraulic pressure (psi / lbs per sq inch) required to rupture the linerboard face — predicts puncture survival | — |
|
Standard Single-Wall 32 ECT
|
Equivalent to 200# Burst | Max Gross Weight: 65 lbs (29.5 kg) | Max Total Dimensions (L+W+D): 75 inches (190 cm) | — |
|
Heavy-Duty 44 ECT
|
Equivalent to 275# Burst | Max Gross Weight: 95 lbs (43.1 kg) | Max Total Dimensions: 95 inches (241 cm) | — |
|
Double-Wall 48 ECT
|
Equivalent to 275# Double-Wall | Max Gross Weight: 100 lbs (45.4 kg) | Max Dimensions: 100 inches (254 cm) | — |
|
Double-Wall 51 ECT
|
Equivalent to 350# Double-Wall | Max Gross Weight: 120 lbs (54.4 kg) | Max Dimensions: 105 inches (267 cm) | — |
|
North American Standard (GMA)
|
— | 48.0 × 40.0 in (1219 × 1016 mm) | Height: ~4.75 in (121 mm) | Dynamic Load: 2,800 lbs (1,270 kg) |
|
EUR-1 / EPAL 1 (Europe)
|
— | 800 × 1200 × 144 mm (31.5 × 47.2 × 5.7 in) | Dynamic Load: 1,500 kg (3,300 lbs) | Tare: ~25 kg |
|
EUR-2 / Industrial (UK/Europe)
|
— | 1200 × 1000 × 144 mm (47.2 × 39.4 in) | Compatible with ISO 48×40 racking |
|
EUR-3 / Half-Pallet
|
— | 1000 × 1200 × 144 mm (39.4 × 47.2 in) | Chemical and heavy industrial storage |
|
Australian Standard (AS 4068)
|
— | 1165 × 1165 mm (45.9 × 45.9 in) | Engineered to fit Australian railway wagons |
|
Asian Standard (Japan/Korea)
|
— | 1100 × 1100 mm (43.3 × 43.3 in) | Optimized for 20ft/40ft ISO ocean container widths |
|
Phytosanitary Standard
|
— | ISPM 15 Heat Treated (HT) to 56°C for 30 min / Debarked (DB) |