Corrugated Cardboard

>Corrugated Cardboard
Corrugated Cardboard2017-07-07T03:01:38+00:00

What is Corrugated Cardboard

Corrugated Cardboard is technically known as corrugated fibreboard

Exposed layers of twin wall corrugated cardboard flute background contrasted with our company designed letter n in cardboard

Exposed layers of twin wall corrugated cardboard flute background contrasted with our company designed letter n in plain cardboard

How we make Corrugated Cardboard

By gluing a fluted medium to two flat linerboards, an inner and outer

Corrugated Cardboard Flute

When you look at corrugated cardboard on its side, you will see wavy ridges of paper which are a medium called corrugated flute
flute
This fluted medium varies in paper thickness depending on the end use of the corrugated cardboard

The thickness of Various Fluted Mediums is consistent across all Cardboard Box Styles

Most Common Corrugated Cardboard Flutes used in Australia are B, C, & E-flute

Most Common Corrugated Cardboard Thickness used in Australia are Single, Double & Triple Wall

Types of Corrugated Cardboard Boxes

Single wall corrugated cardboard boxes are typically made from B or C or E-flute board and are the most commonly used boxes.

Double wall corrugated cardboard boxes are made by varying the paper grammage of the inner and outer linerboards and the thickness of the fluted medium used. The boxes can be made to different strengths to suit various applications. For example, by combining B-flute which is 3mm thick with C-flute which is 4mm thick, with a strong inner and outer linerboard, will result in what is commonly known as a twin wall or twin cushioned cardboard box or carton in BC-flute.

Triple wall corrugated cardboard boxes are considered heavy duty packaging. When a very strong heavy duty cardboard box is needed to pack particularly large and heavy items, then Northwest Packaging will combine two layers of A flute with one layer of C-flute making a triple wall box in AAC-flute.
Northwest Packaging manufactures Fanfold Corrugated Cardboard from recycled materials in 3mm thick B Flute in a variety of thicknesses and lengths. By varying the thickness of the paper grammage, we can make either standard fanfold or heavy duty fanfold.

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We have listed the most common types of corrugated cardboard boxes and the types of flute mediums we use to make our boxes. Understanding some of these basics will help you choose the right cardboard box for your application.

We are always here to help. If you are unsure what type of box you require, we are only too happy to discuss with you the most suitable corrugated cardboard strength for your application. So, please don’t hesitate to contact us.

Single Wall Corrugated Cardboard

  • B-flute thickness 3 mm
  • C-flute thickness 4 mm
  • E-flute thickness 2 mm
  • I -flute thickness 2.5 mm
B-flute

  • Good puncture resistance, provides space savings when stored

C-flute

  • Good stacking strength, better crushing resistance, commonly used

E-flute

  • Mini Flute, lightweight, alternative to paperboard

I-flute

  • Good puncture resistance, lightweight (alternative to E & B-flute)
B-flute

  • Excellent for printing company logo/artwork onto boxes

C-flute

  • Lithographic laminating of boxes

E-flute

  • Custom die cut boxes & temporary Point of Sale (POS) cardboard displays

I-flute

  • Excellent for printing company logo/artwork onto boxes & die-cutting
  • Single wall corrugated cardboard products available in B, C, E & I-flute
  • Available in brown or white cardboard
  • Made up of up to 100% recycled material
  • Also available in Kraft material

Twin Wall Corrugated Cardboard

  • AC-flute thickness 9 mm
  • BC-flute thickness 7 mm
  • BE-flute thickness 5 mm
  • CE-flute thickness 6 mm
AC, BC, BE and CE-flute

  • Made up of up to 100% recycled material
  • Twin or double wall boxes recommended when extra strength required
  • Good crushing resistance
AC and BC-flute

  • Recommended for stacking boxes
  • Heavy duty cartons and packaging
  • BC-flute commonly used for double wall boxes
  • Available in brown or white cardboard
  • BC-flute also available in kraft material
  • Double wall corrugated cardboard available in AC and BC-flute
  • Minimum quantity order required for CE and BE-flute Combination

Triple Wall Corrugated Cardboard

  • A-flute thickness 5 mm
  • C-flute thickness 4 mm
  • AAC-flute – combined thickness 14mm
  • Maximum strength boxes
  • High tear resistance
  • Provides extra cushioning when using combined AAC-flute
  • Recommended for heavy duty packaging
  • Suitable for industrial applications
  • Excellent for stacking boxes
  • Multi-layer flute suited for export packaging
  • AAC-flute board is ISPM15 Compliant
  • Triple wall corrugated cardboard available in AAC-flute only
  • AAC-flute available in kraft material only
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