Cardboard boxes are one of the most widely used packaging solutions across industries. From ecommerce delivery boxes to retail beauty packaging, cardboard product packaging protects products, supports logistics, and creates the first physical interaction customers have with a brand.
However, not all cardboard packaging performs the same. The strength, structure, and design of a box can significantly affect product protection, shipping efficiency, and presentation. Understanding how cardboard packaging works helps businesses choose the right solution for their products.
In this guide, we explore what cardboard boxes are made of, how to choose the right packaging for your product, and how custom cardboard boxes and custom packaging boxes can improve both protection and brand presentation.
What Are Cardboard Boxes Made Of?
Most shipping and delivery boxes are made from corrugated cardboard rather than paperboard. Corrugated cardboard is specifically designed for cardboard product packaging because it provides strength, cushioning, and durability during transport.
Corrugated board contains a fluted inner layer that sits between two flat linerboards. This layered structure creates air pockets that absorb pressure and impact, making corrugated cardboard ideal for shipping and storage.
Paperboard is thinner and commonly used for lighter retail packaging such as folding cartons or certain types of beauty packaging where presentation is more important than heavy protection.
Understanding Cardboard Structure: Wall Strength and Flute Types
The strength of cardboard packaging depends largely on its internal structure. Two key factors influence how strong a box will be: the number of wall layers and the type of flute used inside the corrugated board.
Wall Strength in Cardboard Product Packaging
The number of walls refers to how many fluted layers are inside the board. Each additional layer increases durability and stacking strength.
- Single wall cardboard contains one fluted layer and is commonly used for standard delivery boxes and ecommerce packaging.
- Double wall cardboard contains two fluted layers and provides stronger protection for heavier or fragile products.
- Triple wall cardboard contains three fluted layers and is typically used for industrial applications where extremely durable cardboard product packaging is required.
Choosing the correct wall strength depends on product weight, shipping conditions, and how boxes will be stacked during transport. Our client Aston Lucas uses single wall board with a thickness of approximately 4 mm. This provides excellent stacking strength, which is an important requirement for their packaging.
Flute Types in Custom Cardboard Boxes
Flutes are the wave shaped layers inside corrugated cardboard that create cushioning and structural support. Different flute profiles provide different performance characteristics.
Common flute types include:
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E Flute
A thinner flute that provides a smooth printing surface. It is commonly used for retail packaging and beauty packages where presentation matters.
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B Flute
Offers strong crush resistance and is widely used for shipping cartons and delivery boxes.
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C Flute
A versatile flute that balances cushioning and stacking strength. It is one of the most used flute types in cardboard packaging.
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BC Flute
A combination flute that provides additional durability and is often used for heavier duty custom cardboard boxes.
It is important to understand that thicker cardboard does not always mean stronger packaging. Board grade, compression strength, flute type, and box package design all influence overall packaging performance.
Choosing the Right Cardboard Packaging and Box Type for Your Product
Selecting the right cardboard product packaging begins with understanding both your product and how it moves through the supply chain. Factors such as weight, fragility, and how the packaging will be used all influence which type of box will perform best during storage and transport.
For example, our customer RemovAus uses a double wall cardboard box with a combination of B and C flutes. This structure provides the additional strength and protection required for moving boxes, helping safeguard fragile goods during transport.
Factors to Consider When Choosing Cardboard Packaging
Several factors influence the best packaging choice for your product.
Product weight is one of the most important considerations. Heavier items require stronger cardboard packaging and may need double wall construction to prevent structural failure during transport.
Fragility is another key factor. Fragile products such as glass items or beauty packages often require inserts inside custom packaging boxes to minimise movement and reduce the risk of damage.
Purpose of the packaging also affects box selection. Packaging designed for shipping prioritises durability and stacking strength, while retail packaging focuses more on presentation and customer experience.
Product fit is equally important. Custom made boxes designed around the exact dimensions of a product help reduce empty space inside the box, minimise void fill, and improve protection during delivery.
Common Types of Cardboard Boxes
Different types of cardboard boxes are used depending on how the product will be stored, transported, or displayed.
Regular Slotted Cartons
Regular Slotted Cartons are one of the most common types of delivery boxes. They are cost effective, easy to manufacture, and widely used for ecommerce shipping.
Die Cut Boxes
Die cut boxes are produced using specialised cutting tools that allow for more complex shapes and structural features. These are often used in custom cardboard boxes designed for product presentation.
Mailer Boxes
Mailer boxes are popular in ecommerce and beauty packaging because they provide a secure structure while creating a clean and engaging unboxing experience for customers.
Heavy Duty Shipping Cartons
These cartons are designed for heavier goods and bulk shipments that require stronger cardboard packaging.
Custom Fit Boxes
Custom made boxes are designed specifically around the product dimensions. This approach offers several advantages:
- Reduced void fill and packaging waste
- Improved product protection during transport
- Lower shipping costs due to better space efficiency
By selecting the correct cardboard packaging and box style, businesses can improve both product protection and shipping efficiency.
Sustainable Cardboard Packaging
At Boxes To Go, sustainability is a key part of how we design and manufacture packaging. From responsibly sourced materials to efficient box designs that help reduce waste, we aim to support more environmentally responsible packaging solutions. As sustainability becomes an increasingly important consideration for businesses, cardboard packaging offers several clear environmental advantages.
Key sustainability benefits include:
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Recyclability
Cardboard is widely recyclable and biodegradable.
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FSC certified materials
Many cardboard products are sourced from responsibly managed forests.
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Right sized packaging
Custom cardboard boxes minimise excess material and filler.
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Water based inks
These inks are more environmentally friendly than solvent based alternatives.
Compared with plastic packaging, cardboard packaging is easier to recycle and often has a lower environmental impact.
Why Cardboard Boxes Fail
Even strong packaging can fail if it is not specified correctly. Several factors commonly cause cardboard boxes to break during transport.
These include:
- Overloading delivery boxes beyond their weight limit
- Using the wrong flute type or board grade
- Exposure to moisture or humidity
- Poor stacking methods during storage
- Incorrect taping techniques
Working with an experienced cardboard box manufacturer can help ensure packaging is designed correctly for the intended application. Here at Boxes To Go, we are committed to delivering high quality packaging, with thorough quality checks carried out at every stage of production.
Storage and Handling Best Practices
Proper storage plays an important role in maintaining the strength of cardboard packaging.
To keep boxes in good condition:
- Store cardboard boxes in dry environments to prevent moisture damage
- Keep boxes flat until they are ready to be used
- Stack boxes evenly on pallets to avoid compression damage
- Apply tape correctly across seams to reinforce structural integrity
Following these practices helps ensure delivery boxes maintain their strength during shipping.
Final Thoughts
Cardboard packaging may appear simple, but the right structure, materials, and box package design can make a significant difference to product protection, logistics efficiency, and brand presentation.
Custom boxes allow businesses to create packaging that fits their products precisely while reducing damage, improving sustainability, and enhancing the customer experience.
At Boxes To Go, we design and manufacture custom packaging boxes tailored to your industry. If you are reviewing your cardboard product packaging or looking for a trusted cardboard box manufacturer, our team can help you find the right solution.
Contact Boxes To Go to discuss your custom packaging needs.