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Rigid-Type Boxes
The three pieces of a rigid box style include two identical end panels, and a body that folds to form the two side panels, and unbroken bottom, and the top. Flaps used to form the joints can be on either the end pieces or the body.
The end panels are attached to the body with special equipment, usually at the user's plant. Six joints must be sealed to set up the box before it is filled.
The name comes from the fact that, once the six joints are sealed, the box is rigid.
The International Box Code indentifies these styles as Rigid-Type Boses. In the carrier Classifications rigid boxes are classified as Conventional Slotted Boxes or Recessed End Boxes.
Rigid-Type Styles
NOTE: The above material references and images are used courtesy of the Fibre Box Handbook © 1919-2007 Fibre Box Association
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