Corrugated Board Flute Sizes Explained

Corrugated board flute sizes are a crucial aspect of the packaging industry, and understanding them can help you make informed decisions about your packaging needs.

The flute size of a corrugated board is measured in inches, with common sizes ranging from A (0.024 inch) to F (0.062 inch).

A smaller flute size, like A, is ideal for applications where strength and rigidity are not as critical, such as in packaging lightweight items.

In contrast, a larger flute size, like F, is better suited for heavy-duty applications where extra strength and support are necessary.

Corrugated board flute sizes are a crucial aspect of the packaging industry. They come in various sizes, each with its own unique characteristics and applications.

The most frequently used flute corrugation is C flute, which makes up 80% of boards and boxes. This is because C flute provides a good balance between strength and cushioning.

C flute has approximately 39-43 flutes per foot, making it suitable for a wide range of packaging applications. A-flute, on the other hand, is the largest flute size, with approximately 33-36 flutes per foot. It's often used for packaging fragile items or products requiring extra protection during shipping.

B-flute is smaller than A-flute, with approximately 47-50 flutes per foot. It offers a balance between strength and cushioning and is commonly used for packaging applications where space and weight considerations are important.

Here's a list of common flute sizes and their characteristics:

The flute height of C flute is 1/8”, which is a standard measurement for corrugated flutes. Manufacturers may produce corrugated flutes that vary slightly in size.

Corrugated board is made up of a layer of corrugated fluting and at least one liner. This basic structure is the foundation of all corrugated cardboard.

The corrugated fluting is what gives corrugated board its strength and rigidity. It's the wavy layer that runs through the cardboard.

The liners, on the other hand, provide additional support and protection to the fluting. They can be made from various materials, including paper and plastic.

A box is made of sheets of corrugated cardboard. Corrugated shipping boxes are a common type of box.

Corrugated boxes are created by trimming, scoring, and folding stacks of corrugated fiberboard. This process allows cartons of various shapes and sizes to be made.

Glue is applied to the corners and folds of a box for added stability.

Corrugated cardboard comes in different types, each with its unique characteristics.

All corrugated cardboard has a layer of corrugated fluting, which is the wavy layer that gives cardboard its strength and durability.

At least one liner is also a standard component of corrugated cardboard, and the fluting and liners can be combined in different layers to create different types of cardboard.

The layering of fluting and liners can be customized to suit specific needs, such as increased strength or moisture resistance.

Corrugated board flute sizes can be a bit confusing, but don't worry, we've got you covered. The most frequently used flute corrugation is C flute, making up 80% of boards and boxes.

Manufacturers produce corrugated flutes that may vary slightly in size, but here are some common sizes to know. A-flute is the largest flute size, with approximately 33-36 flutes per foot.

B-flute is smaller than A-flute, with around 47-50 flutes per foot. This size offers a balance between strength and cushioning, making it suitable for packaging applications where space and weight considerations are important.

C-flute is one of the most common flute sizes, with around 39-43 flutes per foot. It provides good stacking strength and is suitable for a wide range of packaging applications.

Here's a quick reference guide to common corrugated board flute sizes:

The most frequently used flute corrugation is C flute, making up 80% of boards and boxes.

A-flute is the largest flute size, with approximately 33-36 flutes per foot, providing excellent cushioning and is often used for packaging fragile items or products requiring extra protection during shipping.

C-flute is one of the most common flute sizes, with around 39-43 flutes per foot, providing good stacking strength and is suitable for a wide range of packaging applications.

If you need a flute size with a smooth surface for high-quality printing, consider E-flute, which has approximately 94-96 flutes per foot.

The size of the flute doesn't necessarily determine its strength, as Macro flute corrugated boards have larger flutes than standard sizes, offering enhanced stacking strength and durability.

Here's a quick reference guide to help you choose the right flute size: