About Corrugate

Corrugated fiberboard, or combined board has two main components: the linerboard and the medium. Both are made of a special kind of heavy paper called containerboard. Linerboard is the flat facing that adheres to the medium. The medium is the wavy, fluted paper in between the liners.

Board Types

single faceSingle Face- one medium is glued to one flat sheet of linerboard.

single wallSingle Wall- the medium is between two sheets of linerboard. Also known as Double Face.

double wallDouble Wall - three sheets of linerboard with two mediums in between.

triple wallTriple Wall - four sheets of linerboard with three mediums in between

Box Dimensions

Dimensions are given in a sequence of length, width and depth. The dimensions of a box are described based on the opening of an assembled box, which can be located on the top or the side.

The opening of the box is a rectangle; that is, it has two sets of parallel sides. The longer of the two sides is considered its length, the shorter of the two sides is considered its width. The side perpendicular to length and width is considered the depth of the box.

top loadingend loadingfive panel

Box Styles

slotted boxes Telescopic Boxes Tray pak interior inserts

Flute Types

The arch is the strongest way to span a given space. These arches are known as "flutes", they resist bending and pressure from all directions. Flutes come in several standard shapes or flute profiles (A,B,C,E,F, etc..)

flute types F flute - normally 3/64" thick.
E flute - normally 1/16" thick.
C flute - normally 3/16" thick.
B flute - normally 1/8" thick.
A flute - normally 1/4" thick.

Joint Types

A flat piece of corrugated fiberboard, which has been cut, slotted and scored, is called box blank. For some box styles, in order to make a box, the two ends of the box blank must be fastened together with tape, staples or glue. The place where these two ends meet is known as the manufacturer’s joint.

glued jointGlued Joint - Liquid adhesives are used to join the glue tabs.

stitched jointStitched Joint - Staples or other fasteners are used to join the tabs.

taped jointTaped Joint - If there are no tabs, the box must be joined using tape, requiring a minimum of 1 1/4-inch overlap.