How you can easily calculate the BCT value of the paper?

Reviewed by Anurag Mishra (Sr. Technical Consultant)

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The calculation of box compression strength for paper is a crucial step in assessing the structural integrity and overall quality of packaging boxes. To ensure that your package should withstand the compression strength of the materials, it becomes imperative to determine the maximum load that it can withstand without collapsing or experiencing damage. Thus, to make it easy for paper & packaging manufacturers to conduct box compression test on the materials, we at Testronix has designed high-quality lab testing equipment known as a box compression tester. By meticulously evaluating the box compression strength through rigorous testing protocols, industry professionals can make informed decisions regarding stacking heights during storage or transport while minimizing potential risks such as product spoilage, and breakages.

In this blog, we will discuss briefly how you can easily calculate the BCT value of paper-related products and how Testronix box compression tester will be a boon for your business.

Introduction to BCT value

The box compression test value, also known as the BCT value, is a critical parameter in the packaging industry that determines the maximum weight a box can withstand without collapsing or deforming. It serves as an indicator for evaluating the strength and durability of various types of corrugated boxes during transportation and storage.

This essential assessment involves subjecting the box to increasing vertical pressure until it reaches its breaking point. This testing parameter represents not only a numerical figure obtained from this test but encompasses a comprehensive analysis of structural integrity and load-bearing capacity.

By measuring this value accurately, manufacturers and suppliers can ascertain whether their packaging solutions meet industry standards, guaranteeing the safe shipment of goods while minimizing potential damages caused by excessive weight or abrupt external forces.

You can easily calculate the compression strength of cardboard and other related materials with a box compression tester.

Testronix box compression tester: To solve all your compression-related damages

In your paper and packaging testing lab, Testronix box compression tester can prove to be a valuable asset. This box tester can be designed to accurately assess the compressive strength and durability of packaging materials and boxes.

With the ability to simulate real-world conditions, this quality lab testing instrument ensures that your products meet industry standards and regulatory requirements.

By utilizing this advanced equipment, you can enhance the quality assurance process in your lab, leading to improved product reliability and customer satisfaction. Our digital model of box compression tester has been made as per industry standards including ASTM D642, ASTM D4169, TAPPI T804, ISO 12048, and JIS Z0212. This will ensure accuracy in test results.

To determine the BCT value of any product, you can easily use the below-mentioned formula:

BCT = 5.876*ECT*SQRT(P*T).


  • BCT is the Box Crush Test (BCT)

  • ECT is the edge crush test (ECT) 

  • P is the box perimeter (in) 

  • T is the box thickness (in) 

  • SQRT is the square root

With the help of this formula, you can easily calculate the box compression value of the materials and ensure that quality products will be delivered to the customers.

This box compression tester will also help you to overcome product rejection rates and ensure that quality materials will be delivered to the customers.

Now, let us discuss the advantages of using a box compression tester in packaging.

Advantages of using box compression tester in packaging

BCT, which stands for box compression test, is a test done to determine the strength of a corrugated board box in direct measure of its stacking strength. Box strength will change as they are transported from one place to another while stacked and also based on the weather conditions. The moisture content of a board will adversely affect the stacking performance of a corrugated board.  You can easily measure the moisture content of the packaging box with the help of a moisture meter.

Now, let us discuss the advantages of using a box compression tester:

  • Box compression tester will help you save time

Shipping your goods is a very serious business and if there will be any defect found in the packaging then it would ruin the whole product's quality. Most business owners make use of corrugated boxes to deliver the products with care. Thus, you can easily trust a box compression tester to test the strength of corrugated boxes with ease. This will also help to save your time while testing as it can be easy to use and is very reliable.

  • You can easily reduce product rejection errors

When you perform a box compression test on the materials, then you can easily remove product rejection errors and ensure that quality materials will be delivered to the customers. This compression testing instrument is the perfect solution for accurate and reliable testing of boxes and other packaging materials.

When you make use of a box compression tester, then you can easily avoid the problems related to compressed boxes through effective testing. You can easily test the durability of cartons and other related materials with the help of this quality testing equipment.

  • Get confidence in your product quality

When you test your product with the help of a box compression tester then you will get confidence in your product quality. This is because our box compression testing equipment has been designed as per industry standards including ASTM D642, ASTM D4169, TAPPI T804, ISO 12048, and JIS Z0212. This will give you confidence in ensuring that accurate quality products will be delivered to the customers and the products will not get damaged when stacked over each other.

These are some of the amazing advantages one can get with the help of this quality testing equipment. If you want more information about our box compression tester like box compression tester price, features and technical specifications, then you can give us a call at +91 9313 140140 or email us at Our team of technical experts will consult you regarding all your needs.

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