Here's why:
* Corrugated boxes are designed to withstand forces (like weight or compression) rather than pressure. The strength of a box is measured in terms of its:
* Burst Test: Measures the maximum force a box can withstand before it bursts.
* Edge Crush Test (ECT): Measures the force required to crush the edge of the box.
* Stacking Strength: Measures the ability of a box to withstand stacking weight without collapsing.
* PSI is relevant for things like:
* Fluid pressure in a pipe or container.
* Tire pressure.
* Air pressure in a room.
What you can do instead:
1. Determine the box's burst strength or ECT**. These are the most common indicators of a corrugated box's structural integrity. You can find this information on the box manufacturer's specifications or on the box itself.
2. Calculate the maximum weight a box can hold**. This depends on the box's dimensions, its burst or ECT rating, and the weight distribution of the contents.
3. Consult with a packaging engineer or manufacturer** to get recommendations on the appropriate box strength for your specific application.
Remember, the actual PSI you need is not a direct measure of the box's strength. It's about how much weight or force the box can handle.
