Another facet of board grades are the board’s test. Corrugated manufacturers use two main testing types to determine a board’s strength: Mullen and ECT. Both describe the overall strength of the board, but each measures a different feature. For both tests, the higher the number, the stronger the board. Developed in 1887, The Mullen Test 1. Corrugated cardboard is lightweight. Corrugated cardboard is light, and rigid and can provide suitable protection through shock absorption and temperature protection, which is why people are 2. Double-wall. In Double Wall Boxes three sheets of cardboard and two flutes, layers are used rather than just one. 3. Triple wall. In this kind of corrugated packaging, the amounts of the flutes are increased, with four sheets of cardboard line board and three corrugated grooved fiberboards between them. Key Differences Between Cardboard and Corrugated Boxes When it comes to packaging, not all boxes are created equal. Cardboard and corrugated boxes might look similar to the untrained eye, but they have distinct differences in terms of strength, durability, uses, and manufacturing processes. C-Flute came along next to split the difference between A and B Flutes. With 42 flutes per foot, it’s thinner than Aflute, thicker than B, and offers good cushioning, stacking and printing properties. C-Flute is by far the most widely used flute size. An estimated 80% of today’s corrugated containers are made of C-Flute board. WsMmiH.

difference between cardboard and corrugated boxes