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Call: 310-GFGF (310-4343)
Important Notice: Bunzl Industrial Packaging is Upgrading your Online Shopping Experience!
We are thrilled to announce the launch of our new Bunzl Industrial Packaging e-commerce platform! With an updated look and user-friendly interface, we’re ready to optimize your online shopping experience.
Our website will be migrating to https://www.shopbunzlindustrial.ca/ on July 31, 2025. Activation emails have been sent to your registered email addresses. If you haven't received your email, please check your Spam/Junk folder. Please browse our new platform and start using it for all your online ordering!
If you encounter any issues or do not have a login account, please contact your local branch, or Sales Rep, or call us toll-free at 310-GFGF (310-4343) for assistance.
Custom Boxes
- Overview
- Production Guides
- Box Measurement
- Box Styles
- Liners and Strength
- Printing Methods
- Flexo Folder Operation
- Die Cutting Operation
- Litho Laminating Operation
- Waxer Operations
- Curtain Coating
- Palletizing
Measuring Corrugated Strength
Compression Strength: Today's liners and mediums are designed to maximize the vertical strength of your package, while minimizing the weight and cost of materials. ECT (edge crush test) is the standard of measurements.
Containment / Puncture Resistance: the traditional way of specifying box strength. Mullen (bursting test) is the standard. This usually entails higher-weight paper than ECT.
We will analyze your requirements to find the optimum paper combination you need.
Recommended Grades
| Total Weight Box & Contents (lbs) |
Dimensions L + W + D (inches) |
Bursting Test Minimum (PSI) |
ECT Minimum (lbs) |
|---|---|---|---|
| Singlewall | |||
| 20 | 40 | 125 | 23 |
| 35 | 50 | 150 | 28 |
| 50 | 60 | 175 | 29 |
| 65 | 75 | 200 | 32 |
| 80 | 85 | 250 | 40 |
| 95 | 95 | 275 | 44 |
| Doublewall | |||
| 80 | 85 | 200 | 42 |
| 100 | 95 | 275 | 48 |
| 120 | 105 | 350 | 51 |
B Flute has good puncture resistance, a smooth printing surface and less bulk than C flute. Particularly good for smaller boxes and die cuts with locking features.
C Flute is the cost-effective standard for most shipping containers. It has good cushioning and stacking strength.
E Flute combines the smoothness of solid board with the cushioning of corrugated. It's especially good for premium retail packaging.
B/C Doublewall is the most effective of the common boards in crush and puncture resistance. It is best with large sizes or heavy loads.