
What are B-flute corrugated boxes?
B-flute corrugated boxes are usually used in the packaging of canned products. The B flute offers the second-highest arch size with 49 flutes per foot. It provides reliable stacking strength and good crushing resistance.
What are corrugated flutes used for?
Corrugated flutes are meant to add extra layers of insulation and protection to corrugated packaging and material. They also aid in the packaging's crush and puncture resistance. Finally, corrugated flutes provide corrugated boxes structure, allowing them to handle heavy objects without folding or breaking.
How many flutes per foot is a corrugated box?
It can also be used for a double-wall application because it has about 36 flutes per foot. B-flute corrugated boxes are usually used in the packaging of canned products. The B flute offers the second-highest arch size with 49 flutes per foot. It provides reliable stacking strength and good crushing resistance.
What is the difference between C and B flute boxes?
With a thickness of 1/8″ and shorter flutes, this type of box still provides a rigid, flat surface for printing. C-flute is commonly used for shippers. The flutes are taller here at 3/16″, giving C-flute somewhat better cushioning properties than B-flute.

What is the difference between a flute and B flute corrugated?
B-Flute. With lower arch heights and more flutes per foot than A-flute material, B-flute contacts liners at a greater number of points. This additional support provides a stiff, flat surface for high quality printing and die cutting.
Which is thicker E-flute or B flute corrugated?
Most corrugated pizza cartons come in either B-flute or E-flute board. B-flute board is about 1/8-inch thick, E-flute is about 1/16-inch thick, or half as much.
What is the thickness of B flute corrugated?
1/8″B-flute is a good alternative to E-flute when wanting to support heavier items. With a thickness of 1/8″ and shorter flutes, this type of box still provides a rigid, flat surface for printing.
What is flute factor in corrugated box?
Flute refers to the material contained between liner boards of the carton box. The construction of the flute helps to make the carton more durable and able to withstand more pressure. It affects how easily the box dents and the height the boxes can be stacked for shipping.
Which is thicker B flute or C flute?
C Flute. Between 3.5mm and 4mm in thickness, C flute offers greater compression strength than B Flute. This means it provides better stacking strength when used for lightweight products.
Is C flute bigger than B flute?
As you can see, C flutes are taller, giving C flute corrugated boxes somewhat better cushioning properties than B flute. And because the flutes are shorter, B flute boxes offer a superior printing surface and more rigidity.
Which cardboard is strongest?
The strongest corrugated cardboard is triple wall corrugated cardboard, constructed with four sheets of carton board and three sheets of corrugated board. This cardboard is used to package large items such as refrigerators and treadmills.
How thick is C flute corrugated inches?
11/64 inchesC Flute. The C is the second-thickest corrugated flute available, measuring about 3.2 millimeters or 11/64 inches in thickness. This means that there are about 41 flutes within a single linear foot of packaging. A C flute is ideal for shipping boxes as it is also crust-resistant and is not easily compressible.
How many types of flutes are in corrugated box?
The corrugated box contains 36 flutes every square foot with a thickness of ¼.
How many flutes are in B flute?
49 flutesB-Flute – Primarily used for canned goods packaging, the B flute provides the second highest arch size at about 49 flutes per foot.
What is F flute?
F Flute: Also called "micro-flute". F is half the thickness of E, but what it lacks in depth, it makes up for in flute density, so sometimes E and F flutes can be used interchangeably. F has about 30% more flutes per foot.
Which is best flute in corrugated box?
E-Flute has the greatest number of flutes/foot,which gives it the greatest crush resistance and the flattest surface for high quality printing applications. The thin board profile of E-Flute (it is one-fourth the thickness of C-Flute) reduces box size and saves storage space.
What is narrow flute in corrugated box?
Generally, larger flutes provide greater strength and cushioning, while smaller flutes have better printability and foldability. Flute profiles can be mixed and matched within the same piece of combined board, to manipulate printability, compression strengths, cushioning strengths and the total thickness of the board.
What flute is 32 ECT?
HP C FLUTE ADVANTAGES:Performance Stats32 ECT CHP CECT Rating (cert stamp)3250Flat Crush68120Thickness (inches)0.1560.165Box Compression (lbs)*5541,014
What is 32 ECT box?
test boxes and 32 ECT boxes? 200 lb. test refers to bursting strength, while 32 ECT refers to stacking strength. Boxes that meet 200 lb. test will also exceed 32 ECT stacking strength.
How do you calculate the ECT of a corrugated box?
The formula of McKee to calculate the value of BCT is following; BCT = 5.876 x ECT x square root of U x d BCT Stands for Box Compression Test in pounds, U denotes box outline in inch, And d denotes thickness of corrugated board in inches.
What is the most popular flute corrugation?
Generally, C flute corrugation is the most popular size of flute corrugation. It is important to note that the order of these types of flute corrugations does not refer to the size of the carton boxes. Instead, it indicates the order in which the different types of flutes were introduced.
What is Corrugated Box Fluting?
Corrugated box fluting means reinforcing the corrugated board that is parallel to the depth of the carton box. The purpose of this process is to give rigidity and strength to the entire box.
What is a Corrugated Cardboard?
Corrugated cardboard is a strong packaging material that consists of three layers of kraft paper. This material is called corrugated because the interior layer of the board is wavy. This layer is mainly responsible for providing strength to the corrugated box.
What is an A flute box?
A-flute cardboards are known for having reliable compression and cushioning. As a result, it has a massive stacking strength. Such cardboard boxes are usually used in the packaging of fragile items. It can also be used for a double-wall application because it has about 36 flutes per foot.
How many flutes are in a C flute?
As stated above, C-flute cardboard is the most commonly used type of corrugated box flute. It can also be called an all-in-one flute that has 41 flutes per foot to provide good strength and printing properties.
How many flutes per foot of cardboard?
With 128 flutes per foot, the F-flute cardboard is also emerging to be a highly popular type of corrugated boxes. It is also an eco-friendly substitute for traditional cartons.
Why are corrugated boxes important?
In short, the corrugated boxes help you in protecting the products and transporting them in a safe and efficient manner.
How many layers of corrugated fluting are in double wall board?
Double wall board has two layers of corrugated fluting and three liners, making it extremely durable.
What is Corrugated Cardboard?
Corrugated cardboard, sometimes just called corrugated, is a sturdy packaging material made of three layers of kraft paper. It’s named for the interior layer of wavy paper, also called the corrugated medium, which gives the cardboard its strength. During manufacturing, the inner sheet is put through the corrugation process to create flutes or stiff folds in the paper. The corrugated medium is then glued in between two sheets of kraft paper, which form the exterior liners. Thanks to the three-layer structure, corrugated cardboard is much stronger than regular cardboard.
What type of cardboard is best for packaging?
Type A cardboard has excellent compression and cushioning as well as good stacking strength. It is great for packaging fragile items and is commonly used for structural strength.
What is corrugated shipping box?
Corrugated shipping boxes are made of sheets of corrugated cardboard. Stacks of corrugated cardboard are trimmed, scored, and folded to create cartons of all shapes and sizes. Glue is applied to corners and folds for even greater stability.
What letters are used for corrugated boxes?
Different types of corrugated boxes are designated by the letters A, B, C, E, or F. The most frequently used flute corrugation is C flute, with 80% of boards and boxes making up this designation. The alphabetical designations of the flutes don't correspond to the sizes of corrugated boxes, but rather to the order in which the flutes were invented.
What is type B cardboard used for?
This cardboard is commonly used for inner packaging components such as pads and partitions.
What is a single wall board?
Single wall board is the most common type of corrugated cardboard. If someone is talking about corrugated cardboard, they are most likely referring to this style. It consists of two outer liners and a middle layer of corrugated medium.
What is the difference between a B flute and a C flute?
C-flute is commonly used for shippers. The flutes are taller here at 3/16″, giving C-flute somewhat better cushioning properties than B-flute.
What is an E flute?
E-flute is ideal for high quality printing with a thickness of 1/16″. It is generally used for mailers and some specialty displays like the beer and wine cases.
How thick is a B flute?
B-flute board is about 1/8-inch thick, E-flute is about 1/16-inch thick, or half as much. Some folks assume that B-flute, because it's thicker, comes with heavier paper, but that's not necessarily so. The flute size has nothing to do with paper thickness, or weight.
How is corrugated board made?
This is accomplished by shaping the inner paper of the board into any of several flute heights during the production , or corrugating, process .
What are the advantages of E flute?
The advantages of E-flute are that (a) it saves almost 50 percent in box blank storage space over B-flute and (2) it tends to print up slightly better.
