
Box Basics
When it comes to boxes, there's a lot to know. This is handy guide will walk you through the basics of corrugated packaging.
What is Corrugated?
In box manufacturing, CORRUGATED, generally refers to the finished product, resulting when layers of material (i.e., paper) are sandwiched (i.e., glued) together, alternating between fluted and flat material.

Liner
Sheet or Board
Medium
Corrugated Variations
Corrugated is manufactured and available in nearly countless varieties on account of the possible combinations of different liners, mediums, basis weights and multiple layer construction.
Liner Board Variations
Kraft Liner - Natural brown color
Mottle White Liner - Not pure white, clay coating on top
Bleach White Liner - Pure white all the way through on both sides
Colored liner - flood coat print (eg. blue, red, etc.)
Coatings - michelman, wax, etc




Single Face
Single Wall
Double Wall
Triple Wall
Corrugated Flutes and Thickness

Flutes Per Inch: 8/in
Thickness: 1/32"
Flutes Per Inch: 7/in
Thickness: 1/16"
Flutes Per Inch: 4/in
Thickness: 3/16"
Flutes Per Inch: 5/in
Thickness: 1/8"
Flutes Per Inch: 3/in
Thickness: 1/4"
F Flute
E Flute
C Flute
B Flute
A Flute
BC Flute

Thickness: 5/16"
EB Flute

Thickness: 3/16"

E Flute
B Flute
C Flute
Excellent crush resistance and exceptional printing surface.
Excellent crush and puncture resistance and is a great printing surface.
A good printing surface. It has compression properties greater than B flute and offers crush resistance.
Examples: Displays, pizza boxes, ballot boxes, packaging of consumer goods such as cosmetics.
Examples: Inner packaging components such as pads and partitions. Counter displays, canned food items, die-cut boxes.
Examples: Shipping boxes, food, furniture, etc.
Pad: 600/unit
RSC: 300/unit
Pad: 350/unit
RSC: 175/unit
Pad: 250/unit
RSC: 125/unit
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