Corrugated boxes are used generally for carriage and to protect the goods. Corrugated boxes are used at nearly all sectors.

Corrugated box are mostly produced as per the shapes of Fefco 201 and 202 forms.
Fefco is an international classification of box shapes

Corrugated boxes are made of corrugated sheets.

Corrugated Sheets are classified according to their flutes. (layers)
In general, as a standard mostly used types are;
E flute
B Flute
C Flute
Or
Double used
EB Flutes
BC Flutes

Their colors may be white or natural (brown)
Flexo type of printing can be applied on corrugated boxes.
(Flexo : Direct printing is applied on corrugated sheets. The qualification of printing is poor then offset printing method but more economical.)