CardboardShaper

ECMA A01.01.00.00

Sleeve: blank size formula and dieline

A band of four faces, open at both ends, glued into a tube. It slides over a tray, a box or a bundle of products and is often the only printed part of the pack.

Blank size calculator

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

Blank
415.8 × 90 mm
Outside size
140.9 × 60.9 × 90 mm
Pieces
1 blank

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Free to design, preview and check in 3D. €2.50 for the PDF, €3.50 for the DXF or SVG.

The formula

Blank length2L + 2W + 4t + g
Blank heightD
L, W
internal length and width
D
depth of the sleeve, the H in the tool
t
board caliper (0.45 mm for 350 gsm SBS)
g
glue flap width: 14 mm by default

Around the sleeve: 2L + 2W + 4t + g, four panels each one caliper wider than the inside, plus the glue flap.

The height of the blank is the depth of the sleeve, D. There are no flaps.

Example. 140 × 60 × 90 mm inside on SBS / GC1 board 350 gsm (t = 0.45, g = 14): blank 415.8 × 90 mm.

Per board

The same 140 × 60 × 90 mm inside on each board. Thicker board means a bigger blank for the same inside size.

Boardt (mm)g (mm)Blank (mm)
SBS 350 gsm0.4514415.8 × 90
FBB 400 gsm0.5514416.2 × 90
Kraft 400 gsm0.514416 × 90
Greyboard 1.0 mm114418 × 90

In the generator

Questions

How tight should a sleeve be?
Enter the outside size of what goes in as L and W. The generator adds the caliper at every fold; add a millimetre or two yourself if it has to slide on easily.

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