Flutes Explained
Boxes are made of a paper material called "corrugated" or "corrugated
paper". A cross section of some corrugated is shown.
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This picture represents a material called "single wall
corrugated". The vast majority of all boxes are made of single wall corrugated.
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This picture shows a material called "doublewall corrugated" which is
usually much stronger than the "singlewall" material described above. |
Strength of single wall corrugated (or double wall) varies a lot depending on the
materials used in construction. There also exists "triplewall corrugated". This material is frequently designed to
meet military specs. It is usually treated for extreme strength and moisture resistance. This makes it incredibly
strong and incredibly expensive. If you feel you need triple wall strength, it might be easier to purchase crates,
instead.
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Flutes is a sheet of corrugating medium that is shaped into a
continuous rolling wave.
Observed vertically, they form a row of columns, basically a structure
form capable of supporting great weight.
Viewed horizontally, the flutes are arches. Flutes serve as protective
cushioning and helps strengthen a carton |
| Flute Structures |
| Name |
Flutes Per Linear
Foot |
Approximate Height
(Exc. facings) |
Picture |
| A-Flute |
33 +/- 3 |
4.7 mm (3/16") |
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| B-Flute |
47 +/- 3 |
2.5 mm (3/32") |
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| C-Flute |
39 +/- 3 |
3.6 mm (9/64") |
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| E-Flute |
90 +/- 3 |
1.5 mm (3/64") |
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Contact us for a quote on an existing box or a new design!
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