Side-by-Side Comparison
Shipping, Boxes & Logistics
Standard Carrier Shipping Boxes vs. Corrugated Cardboard Flute Profiles
Comparing 2 standards across 14 specifications. 14 key differences identified.
Comparing:
Standard Carrier Shipping Boxes
Corrugated Cardboard Flute Profiles
Standard parcel carriers (USPS, FedEx, UPS) define standardized rigid carton tiers, flat rate boxes, and dimensional weight divisor formulas (e.g. Length × Width × Height ÷ 139) that determine billable freight charges across domestic and international logistics networks.
Corrugated fiberboard packaging is engineered by sandwiching a wave-shaped arched paper medium ('fluting') between flat linerboards. Standardized into letter designations (A, B, C, E, F), flute profiles define the physical caliper thickness, flutes per linear foot, and the balance between stacking crush strength and high-resolution printability.
Specification Comparison Table
14 Parameters| Parameter / Spec | ||
|---|---|---|
|
Governing Standards
|
USPS Domestic Mail Manual / FedEx Express / UPS Ground Standards | FEPA (European Corrugated Federation) / TAPPI / ASTM D4727 |
|
USPS Small Flat Rate Box
|
8-11/16" × 5-7/16" × 1-3/4" (22.1 × 13.8 × 4.4 cm) | Max 70 lbs (31.8 kg) | — |
|
USPS Medium Flat Rate (Side)
|
11-1/4" × 8-3/4" × 6" (28.6 × 22.2 × 15.2 cm) | Top-loading standard carton | — |
|
USPS Medium Flat Rate (Top)
|
14" × 12" × 3-1/2" (35.6 × 30.5 × 8.9 cm) | Shallow wide footprint for clothing/books | — |
|
USPS Large Flat Rate Box
|
12-1/4" × 12-1/4" × 6" (31.1 × 31.1 × 15.2 cm) | Max 70 lbs domestic | — |
|
FedEx Small / Medium / Large Box
|
Small: 12.25×10.9×1.5" | Medium: 13.25×11.5×2.38" | Large: 17.5×12.38×3" | — |
|
Standard Dimensional Weight Divisor
|
DIM Divisor = 139 (Domestic Commercial & International) | DIM Wt (lbs) = (L × W × H in inches) ÷ 139 | — |
|
Maximum Standard Parcel Size
|
Maximum Length: 108" (274 cm) | Maximum Length + Girth: 130" (UPS/FedEx Ground) or 165" (Freight) | — |
|
A-Flute (Original)
|
— | Thickness: 4.8 mm (3/16") | 33 ± 3 flutes/ft | Maximum vertical cushioning and top-to-bottom compression |
|
B-Flute (Puncture Resistant)
|
— | Thickness: 3.2 mm (1/8") | 47 ± 3 flutes/ft | Superior puncture resistance and die-cut foldability (canned goods) |
|
C-Flute (Universal Standard)
|
— | Thickness: 4.0 mm (5/32") | 39 ± 3 flutes/ft | Dominates ~80% of all standard RSC shipping boxes |
|
E-Flute (Micro-Flute / Retail)
|
— | Thickness: 1.6 mm (1/16") | 90 ± 4 flutes/ft | Excellent smooth crush-resistant printing surface for retail cartons |
|
F-Flute (Ultra-Thin / Folding)
|
— | Thickness: 0.8 mm (1/32") | 125 ± 5 flutes/ft | High-end cosmetics, fast-food clamshells, direct litho printing |
|
BC-Flute (Double-Wall Heavy)
|
— | Thickness: 6.8 mm (1/4") | Combination B + C flute for heavy appliances, furniture, and master shippers |
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