What is the difference between one-well, two-well and three-well?

If you’re new to the world of cardboard, it’s good to know the differences between single, double and triple corrugated. The short answer to the question is: the number of corrugated layers and the thickness of the board, which in turn determines the resilience of the material. In this blog post, we also provide a longer answer, for those who need to decide which grade of corrugated board is the right choice for your particular products.

How to choose the right corrugated board grade?

RAJA offers boxes in four different types of corrugated board: single-wall, double-wall, reinforced double-wall and triple-wall. Choose the quality depending on the different characteristics of the products to be packed. Take into account weight, fragility and conditions during transport and storage. Will the box be stored or shipped, and does it need to be stackable?

If you are shipping products to the other side of the world, you need to take into account the mode of transport, the number of transport routes, whether the box needs to be palletised and whether there are any special conditions that the corrugated quality needs to endure, such as high humidity or changes in pressure.

Enwell	Resilient Single-ply corrugated board with a thickness of approximately 5 mm. Suitable for most packaging needs and is suitable for protecting lighter products up to 20 kg. See all boxes with enwell
Tvåwell	Highly resistant Double-grated corrugated board with a thickness of approx. 7 mm. 50% more resistant than single corrugated board. Provides perfect protection for heavier and fragile products up to 40 kg. See all boxes with double corrugated
Reinforced twin-wall	Extremely resistant and suitable for transport Reinforced corrugated cardboard in two grooved layers with a thickness of about 7 mm. 50% more resistant than two-ply. Maximum load of 70 kg. Recommended for export and in difficult transport conditions. See all boxes with reinforced two-wall
Trippelwell	Extra solid and suitable for export Corrugated cardboard in three grooved layers with a thickness of approx. 15 mm. 30% more resistant than reinforced twin-wall. Maximum load of 500 kg and protects very fragile products. Recommended for transport, export and long-term storage. See all triple-well boxes

What does corrugated board consist of?

Corrugated board (with or without fluting) is the cornerstone of most cardboard packaging and also the packaging of choice for consumers. Corrugated board consists of an outer protective layer, a corrugated layer and an inner layer, a total of three components. If the carton has two or more corrugations (double or triple corrugated), there are at least two layers of inner paper.

The outer layer must have properties such as protection against moisture and temperature variations, while at the same time being strong enough to allow the box itself to be stacked. In addition, it needs to have an optimum surface area for packing tape to adhere well, while allowing for the addition of special prints such as logos and patterns.

Why is corrugated board so popular?

As mentioned above, corrugated board is the packaging of choice for consumers, far ahead of plastic, wood and metal. The benefits of corrugated board are many:

• It is easy to work with
• It is a lightweight material
• High elasticity
• Good protection due to the shock-absorbing effect
• Good air circulation
• Protects against moisture
• Can be tailored to almost any need
• Environmentally friendly and reusable

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