How to Calculate the Weight Bearing Capacity of a Corrugated Box? 

How to Calculate the Weight Bearing Capacity of a Corrugated Box? 

Checking the weight of a corrugated packaging box may not be in your mind while purchasing the boxes, especially if you are purchasing it for the first time. However, the weight and strength of the box can play a strong role not only in protecting the products within during transportation but also in making more profit in the business by lowering costs in the supply chain. So, before you purchase the packaging boxes from a corrugated box manufacturer in West Bengal, you may want to read this blog to learn how to calculate the weight that a corrugated box is capable to hold. 

The Structure of a Corrugated Box

Corrugated boxes are manufactured with three layers of paper; an outside liner, an inside liner, and fluting running in between. It is the fluting between the two layers that gives structure and strength to corrugated boxes along with an additional layer of protection. The corrugated method which is also known as containerboard helps in providing the strength required to hold weight and protect the objects within. 

The strength of a corrugated box is relative to its density; hence, it starts with the material. The more walls are given to a box, the stronger it is going to be. The stamp of the carton box manufacturer in West Bengal inside the box generally states single, double, or triple wall so you can know the strength of the box from it. 

You need to keep in mind that all boxes are not made the same. The inner and outer dimensions of the box can vary, which means that the weight it can hold may also vary. You can also calculate the size of the box if you want to make informed decisions about supply chain management, but it does not affect the overall strength of the box. 

How to Measure the Weight Bearing Capacity?


In order to know the weight bearing capacity, you need to know the weight of the box first. A popular way of calculating the weight of boxes of any size is known as the edge-crush test (ECT). It is the measure of a corrugated board’s compressive strength. You can measure it by compressing a small segment of the board on the edge in the middle of the two rigid plates that are vertical in the direction of the fluting. You have to be compressing it until it establishes a peak load. The use of ECT-rated corrugated boxes is preferred in the industry due to the lower requirement of raw materials and energy, and reduced pollution. 

The ECT rating is essential to measure the weight bearing capacity of a corrugated box. You can find it in the certificate of the packaging box manufacturer, generally on the bottom of the box. You may download a PDF on the estimations of weight bearing capacity of single-walled and double-walled boxes based on the ECT number. 

Conclusion: If you are looking for a high quality corrugated box manufacturer in West Bengal, you may contact Unique Packaging Corporation. To contact the team, send a mail at info@uniquepacks.com

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