CardboardShaper

FEFCO 0203

Full overlap box: blank size formula and dieline

A slotted box whose outer flaps run the full width of the box and lie over each other completely. Top and bottom become two layers of board, which makes it the slotted box for heavy or pointed contents.

Blank size calculator

Inside dimensions. The result comes from the same generator that draws the file.

Blank
1047 × 553 mm
Outside size
306 × 206 × 156 mm
Pieces
1 blank

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The formula

Blank length2L + 2W + 4t + g
Blank heightH + 2W + 3t − 2s
L, W, H
internal length, width and height
t
board caliper (3 mm for B-flute)
g
glue flap width: 35 mm on corrugated, 15 mm on carton by default
s
gap between the flaps where they meet: 3 mm on corrugated, 1 mm on carton by default

Around the box it is the same as a 0201: 2(L + t) + 2(W + t) + g.

Each flap is the full width of the box, W + t, minus the gap s. Two flaps and the wall H + t give H + 2W + 3t − 2s.

Because the flaps are as deep as the box is wide, a 0203 blank is much taller than a 0201 of the same size.

Example. 300 × 200 × 150 mm inside on B-flute corrugated (t = 3, g = 35, s = 3): blank 1047 × 553 mm.

Per board

The same 300 × 200 × 150 mm inside on each board. Thicker board means a bigger blank for the same inside size.

Boardt (mm)g (mm)s (mm)Blank (mm)
F-flute0.83531038.2 × 546.4
E-flute1.53531041 × 548.5
B-flute33531047 × 553
C-flute43531051 × 556
EB double wall4.53531053 × 557.5
BC double wall73531063 × 565

In the generator

Not to be confused with

FEFCO 0200
Half slotted box: flaps on the bottom only, open top.
FEFCO 0201
Regular slotted box: the outer flaps meet in the middle.
FEFCO 0202
Overlap slotted box: the outer flaps overlap partly.

Questions

Why is a full overlap box so much more board?
Each flap is as deep as the whole width instead of half of it, so top and bottom are double. For 300 × 200 × 150 mm on B-flute that is 553 mm of blank height against 353 mm for a 0201.

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