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FEFCO 0410: Five panel folder (FPF)

A five panel folder is one cut and scored piece with a fifth panel that closes over one side. Its end flaps fold in layers, so each end carries several thicknesses of board, which suits long, thin items that would push through a normal box end.

Dieline

L 36W 6sidebottomsidetopclosing panel
Schematic drawn by Packgent from the style's construction, not a production die. Solid lines are cuts, dashed lines are scores.

Try your size. Inside dimensions in inches; the drawing redraws as you type.

Construction

  • Five panels run around the long axis: side, bottom, side, top, then a closing panel that covers one side completely.
  • End flaps on the four main panels fold over each end in turn, building up several layers.
  • There is no manufacturer's joint; the box is folded and closed in one operation.
Flap and panel rule
PartSize
Closing (fifth) panelH, covers one side
End flapsfull end depth, folded in layers

Closure. Glue or tape the fifth panel to the side it covers; tape the ends if needed.

Blank size

Strip length is 2W + 3H; strip height is L plus the end flaps.

When to use it

Good for

  • Long items of small cross-section: rods, tubes, blinds, posters
  • Products that could punch through a box end in transit

Watch for

  • Many folds per box: slower to set up by hand
  • Long blanks can be hard to run on smaller box plant equipment

Open the Spec Builder to check style, grade and dimensional weight for your product.

Related styles

Sources

  1. Fibre Box Association, "Box Styles Basics" (2014), hosted by IoPP
  2. FEFCO: The FEFCO Code (International Fibreboard Case Code), 12th edition
  3. McKee, R.C., Gander, J.W. & Wachuta, J.R. (1963). "Compression strength formula for corrugated boxes." Paperboard Packaging 48(8): 149–159

Last reviewed . See all sources and how Packgent computes.