Corrugated Packaging
Corrugated boxes are extremely durable, versatile, economical and lightweight material used for custom-manufactured shipping containers, packaging and point-of-purchase displays, and is available in RSC containers for shipping. and DIE CUT for specialized display containers etc.
The corrugated paper most commonly used to make boxes has one layer of fluting between two smooth sheets. But there are many types of corrugated available, each with different flute sizes and thickness eg.
Common flute sizes are “A”, “B”, “C”, “E” and “F” or microflute. The letter designation relates to the order that the flutes were invented, not the relative sizes. Flute size refers to the number of flutes per linear foot, although the actual flute dimensions for different corrugator manufacturers may vary slightly. Measuring the number of flutes per linear foot is a more reliable method of identifying flute size than measuring board thickness, which can vary due to manufacturing conditions. The most common flute size in corrugated boxes is “C” flute.
| Flute Designation | Flutes per linear foot | Flute thickness (in) | Flutes per linear meter | Flute thickness (mm) |
| A flute | 33 +/− 3 | 3⁄16 | 108 +/− 10 | 4.8 |
| B flute | 47 +/− 3 | 1⁄8 | 154 +/− 10 | 3.2 |
| C flute | 39 +/− 3 | 5⁄32 | 128 +/− 10 | 4.0 |
| E flute | 90 +/− 4 | 1⁄16 | 295 +/− 13 | 1.6 |
| F flute | 128 +/− 4 | 1⁄32 | 420 +/− 13 | 0.8 |
| All Items |