Why is moving box strength important and how do I know how strong my moving box is?
Cardboard moving boxes come in many different shapes, sizes, and strengths. When it comes to moving supplies, not all moving boxes are the same. Selecting moving boxes is one of the most important parts of preparing to move. Keep in mind that the boxes you choose will be protecting your valuable possessions; and the stronger the moving boxes, the better protected your items will be. It is important to know how much a moving box can hold as well as how much can be stacked on top of it. Looks can be deceiving, and just because a box is big does not necessarily mean it can hold a lot of weight.
Cardboard moving boxes are tested in two ways - an edge crush test and a burst test.
The edge crush test measures how much force is needed to crush the cardboard of the box when it is standing on its side. The test is measured in pounds per square inch, and the result is called the cardboard box's ECT. For example, a moving box with "32 ECT" can withstand up to 32 pounds per square inch of pressure without being crushed.
The burst test tests the force needed to burst the sides of a moving box. It is also measured in pounds per square inch. For example, a moving box with "200lb test" can withstand up to 200 pounds of pressure per square inch without bursting.
The results of these tests are printed on one of the bottom flaps of the moving box. This is called the box manufacture's certificate (BMC).
When you are buying moving boxes, you have to check thoroughly to ensure the moving boxes you are buying are right for what you need. The industry standard for moving boxes is 200lb test and 32 ECT, and usually moving companies will not use anything weaker. For bigger moving boxes such as kitchen and wardrobe boxes, an even stronger box should be used. Some moving supply dealers may sell much weaker 150lb test boxes, which are actually made for lightweight usage.
If you decide to get used moving boxes, make sure to inspect them carefully first. Check the seams, and make sure they are not coming unglued. Ask the moving supply dealer how the boxes were stored and if the boxes have ever come in contact with water, because getting wet ruins boxes. Ask how many times the moving boxes have been used, because boxes get weaker with every use.
Getting good quality moving boxes and moving supplies is the first step to a successful move.
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