Boxes can be Single, Double, Triple, or Quad Walled. Additional walls increase strength and protection, but also increase cost, size,
and weight.
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Strength: Unspecified
Strength
Strength of the box measured with either # Test (Bursting Strength Test) or ECT (Edge Crush Test). Higher values indicate a stronger and heavier box.
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Specified in whole inches as LxWxH.