Low Price Guarantee.  Find a Lower Price?  We'll Match or Beat It.

0

Your Cart is Empty

Mullen or ECT for Your Corrugated Box Needs?

by Jim Stalker April 03, 2020 1 Comment

32 ect vs 200 lb test boxes

Confused about the different ways that corrugated boxes are rated?  Don’t understand the difference between Mullen (also call “Burst”) and ECT?  You’re not the only one.  For years the corrugated industry only used the Mullen rating.  Corrugated box consumers were familiar with boxes classified as 150 C, 200 C, 275 C and other similar designations.  Then along came the 1980’s and suddenly there was a whole new way to rate boxes- ECT (short for “Edge Crush Test”) and we started seeing boxes classified as 32 ECT, 44 ECT, and other confusing combinations.

So what’s the difference?  Simply put, Mullen boxes measure how much pressure it takes to burst or puncture the box and ECT measures top-to-bottom compression or stacking strength.

What’s best for your specific needs?  If you are concerned with puncture resistance and containment strength you are best off choosing a Mullen grade box.  If you are more worried about boxes crushing and issues with stacking then you’ll want to go with ECT shipping boxes.

Most corrugated box companies manufacture both types of boxes, so you can specify which type of box you are looking for.  For the most part, prices between the two are pretty comparable, though generally ECT usually tends to be a little bit less expensive.

Jim Stalker
Jim Stalker


1 Response

Barry Johnston
Barry Johnston

June 02, 2021

Thanks for the article. That is the first time it was ever explained to me so that I could understand!

Leave a comment

Comments will be approved before showing up.


Also in Packaging & Shipping Supplies Blogs

What is Stretch Wrap Film?
What is Stretch Wrap Film?

by Jamie Runevitch May 03, 2022

Stretch wrap is a thin, plastic film that is very stretchable. It is made from polyethylene; a low-density, linear material. Linear Low Density Polyethylene (LLDPE) is wrapped around products to keep them bound. 
Read More
National Truffle Day
National Truffle Day

by Jamie Runevitch May 02, 2022

The original chocolate truffle was a ball of ganache, or a whipped chocolate and cream filling, often flavored and coated in cocoa. Nowadays, the term is often used to describe any filled chocolate, but the ganache is what gives the truffle its unique distinction.

PackagingSupplies.com has a great variety of candy gift boxes ready to ship and filled with these tasty desserts.
Read More
Arbor Day and Shipping Materials
Arbor Day and Shipping Materials

by Jamie Runevitch April 24, 2022

PackagingSupplies.com has a dependable relationship with trees and their growth cycle. Our main source of prime materials for shipping boxes, moving supplies, and many more cardboard articles come from this noble organism that has proven through human history to be one of our most valuable allies.
Read More

Subscribe