Application of Corrugated Cardboard Boxes in Ocean Shipping Packaging
Corrugated cardboard boxes (corrugated cartons) are one of the most commonly used outer packagings for cargo in container shipping, offering advantages such as low cost, easy use, convenient recycling, easy surface printing, and light weight. With the development of palletization and containerization, the application range of corrugated cardboard boxes as cargo packaging is becoming increasingly wide. With the help of corrugated board with high compressive strength, some heavier cargo can also be packed in corrugated cardboard boxes.
1. Common Types of Corrugated Paper
Based on flute shape and density, commonly used corrugated papers are divided into four types: A, B, C, and E, each with different characteristics:
| Type | Number of flutes per 30cm | Characteristics | Main Applications |
|---|---|---|---|
| A flute | 36±3 | Good cushioning | Lightweight goods |
| B flute | 51±3 | Strong edgewise compression strength, takes up less internal box space | Hard packaged goods such as cans and boxes |
| C flute | 42±3 | Properties between A and B | General packaging |
| E flute | 92-100 | Finest flute, good printability | Individual packaging, inner packaging |
2. Characteristics of Various Types of Corrugated Paper
A-flute corrugated paper: Good cushioning performance, suitable for lighter goods, and is the most widely used corrugated paper type in outer packaging.
B-flute corrugated paper: Strong edge crush resistance, suitable for fixed-shape rigid packaging such as cans, cases, and boxes; its cushioning is slightly inferior to A-flute, but it has high compression strength and takes up less space in the box.
C-flute corrugated paper: The number of flutes per unit length and its characteristics fall between A-flute and B-flute, making it a compromise choice.
E-flute corrugated paper: The flutes are the finest and most numerous per unit length, with relatively high edge crush resistance; it is mostly used for single-item packaging and inner packaging, and offers good printing performance.
3. Selection Recommendations
- For light, fragile goods, choose A-flute corrugated boxes first for better cushioning.
- For rigid packaged goods with fixed shapes, B-flute can be used; it has high compression strength and saves internal box volume.
- When good printing is needed or for inner packaging, use E-flute corrugated board.
- For heavier goods, choose corrugated board with higher compression strength and reinforce with pallets, stretch film, etc.
Further reading: Selection and Specifications for Ocean Shipping Packaging compares five packaging methods; Wooden boxes are suitable for heavy goods; Bundled, bagged, and drum packaging covers bulk cargo packaging; Packaging and Insurance Guide for overall requirements and insurance recommendations.
Corrugated Cardboard Box FAQ
Q: Which type of corrugated cardboard is commonly used for sea freight?
A: The most common is A-flute corrugated cardboard, which has good cushioning and is suitable for lightweight goods; for rigid packaged goods with fixed shapes, B-flute can be chosen as it has strong edge crush resistance; E-flute is mostly used for inner packaging and single-item packaging.
Q: Can corrugated cardboard boxes be used for heavy goods?
A: Yes. Corrugated cardboard with higher compression strength can be used, reinforced with pallets, stretch film, etc., to package some heavier goods; however, for goods exceeding a certain weight or with high strength requirements, wooden crates are recommended.
Bofeng Logistics provides one-stop logistics services including domestic container shipping, international shipping (FCL/LCL), Hong Kong and Macau logistics dedicated lines, as well as trailer, customs declaration, and warehousing. Contact number: 130-7567-8958 (Manager Huang), call now for a customized quote!
Disclaimer: This article was compiled by the Bofeng Logistics team and verified as of August 2026. Packaging requirements may change with destination country quarantine regulations, carrier policies and industry standards; always refer to the carrier's current requirements for your shipment.
Related Logistics Services
Bofeng Logistics offers the following related services, feel free to inquire:
