top of page


Updated: Feb 24, 2021

Nowadays, retailers and manufacturing businesses are extending their businesses to the online community. They can now swiftly sell their product across the globe through their business website or online store.

While the primary product package is essential, branding on the shipping box also plays significant roles in your company online presence. Especially when you’re shipping any of the products listed below:

1. Wine Shipping Boxes

2. Clothing & Apparel Shipping Boxes

3. Bulk Shipping Boxes for Multiple Items

4. Food, Grocery & Produce Shipping Boxes

Choosing the correct flute box that is suitable for your shipping box can be challenging and overwhelming at times, especially for people who do not have any experience in the packaging industry. People who are acquitted with the packaging industry might not have any issue in deciding the best flute box for their shipping box, unlike people who do not have any prior experience. However, whichever category you fall in to, you don’t have to worry again because we are about to introduce you to what flute box is and its effect on your shipping box. Here is a simple guide on how to choose the correct flute box for your shipping box.


Flute is the foundation of any corrugated fiberboard – otherwise called paperboard. In fact, what makes corrugated board or paperboard corrugated is fluting. It is the wavy layer that is glued in between two flat linerboards to create rigid, durable, and stackable. The wavy-shaped pattern is known as “flute,” and each wave is call fluting.

Flutes are available in different sizes – which is also called profiles. Each of these flute profile (size) is identified by letters, and they all have their unique features, ranging from shopping strength, better print quality, and reduction in storage space.

E FLUTE – Lighter

E – Flute is the most used on the list. The thickness is 1/16, which makes it very flexible and easy to fold. It has a fantastic flat surface that makes it suitable for high-quality printing. Its super thin profile is also a bonus as it saves the outer box dimension and save on storage space. Though its subpar puncture resistance might make it a turnoff for shipping heavy, rigid, and large products, its great crunch resistance, however, makes it very ideal for glass, cosmetics, food, liquor, pet supplies, high-quality graphic display and of course point of purchase boxes.

The smallest flute we manufacture

Amazing smooth surface with the best print quality

Perfect crunch resistance and ideal for cosmetics, foods, and point of purchase products


B-flute is the second most popular among all our flute boxes. It is an excellent alternative to E-flute, and considering the fact the it can support heavy products – it is really an ideal choice for your shipping.

With a thickness of 1/8 and ideal shorter flutes makes it suitable for high-quality printing. The flutes provide some thickness and rigidity, which makes it a happy medium for durability and some extra cushion from puncturing. URL Printer often uses this printer for tuck top mailer, regular slotted carton, Display header, and Earlock mailer.

Strong enough for shipping heavy products

Smooth flat surface and suitable for quality printing

Thick enough to give your goods extra cushion


A-Flute is the thickest flute among all the flutes, and it often is regarded as the original corrugated flute design. A-flute with a thickness of ¼, its incredible stiffness qualities, and its short column crush resistance makes it the best choice for hefty products, and of course, fragile items. A-flute has 33 flutes per linear foot, which results in a large amount of space between the flutes and less smooth board surface, which makes it less suitable for printing intricate designs and logos. It is popular for shipping large industrial containers and other very heavy objects.

The original corrugated flute design and the thickest flute

Ideal for shipping heavy products

Amazing crush resistance to protect fragile products


AB Flute is a custom-made flute with a double wall material that combines the A flute and the B Flute. It is exceptionally very thick, with a thickness of about 0.5 inches. This custom flute provides an excellent stiffness quality with a short column crush resistance, which makes it durable for any heavy container or products.

AB flute can only be used for extremely heavy products. AB Flute, just like A-flute, has a large amount of space between the flutes and less smooth board surface with double-wall, which makes it less ideal for printing intricate designs. But of course, you can always include your logo and some other rough designs.

Custom made flute for shipment of heavy and industrial products

Double-wall material with about 0.5 thickness

Made up of the combination of both A & B Flute

Now you understand the different types of available flute boxes, and you know how each box works. In UYL, We automatically select a material thickness that works best for your box dimensions. If you require a specific thickness, kindly get in touch with our Account Manager.


Custom made boxes is our specialty. We offers high-quality yet stunning custom shipping box with printing options below:

1. Full-color printing on Outer Carton Only

2. Full-color printing on the Outer Carton and Inner Carton.

3. One – Two Colors Logo Printing on the Outer Carton (Brown or White Base material)


Our dedicated packaging team will work with you throughout the process to design and order the perfect inserts or dividers for your shipping boxes.

For a limited time, we offer a FREE structural design on all packaging inserts.


All the four listed flutes are available at UYL Printers, and they are all made up with sturdy and sustainable materials. Below are the 4 types of based material option:

1. Outer & Inner Carton White

2. Outer & Inner Carton Brown

3. Outer White, Inner Brown

4. Outer Brown, Inner White.


These RSC boxes (Regular Slotted Container) arrive pre-glued for easy assembly. Fold the flaps down to the middle before sealing the bottom with tape. They are made of sturdy and sustainable cardboard that protects your products during transit.


Our custom shipping boxes take only 10-12 business days to produce. This gives us enough time to check your artwork, correct any technical issues, print, cut, glue and pack your shipping boxes before we ship them. Your shipping boxes will be delivered to your door within a few days after we dispatch them.

*Producing samples takes only 3 business days.

All these services are available at cost-effective prices without any comprise quality.

Contact Us to develop your custom shipping box today!

4,405 views0 comments


bottom of page