Medium Double Wall Boxes (length 400-450 mm)

• The most versatile and cost-effective packaging solution
• Recommended maximum weight up to 15 Kg, and up to 10 Kg if sent on pallets
• Carefully selected range of box sizes for e-commerce businesses
• 100% recyclable boxes made from recycled paper.
• The widest range of double wall cardboard boxes available in the market

From: £1.15 Regular Price £1.15
In stock
Only %1 left
400 x 200 x 200 mm - CDW335
400 x 270 x 200 mm - CDW337
400 x 300 x 270 mm - CDW339
400 x 330 x 300 mm - CDW341
400 x 350 x 150 mm - CDW342
400 x 400 x 300 mm - CDW345
400 x 400 x 340 mm - CDW346
400 x 400 x 500 mm - CDW348
400 x 400 x 600 mm - CDW349
406 x 406 x 406 mm - CDW007
410 x 270 x 290 mm - CDW350
410 x 310 x 240 mm - CDW351
430 x 300 x 300 mm - CDW353
430 x 310 x 250 mm - CDW355
430 x 310 x 350 mm - CDW356
435 x 325 x 145 mm - Small Parcel - CDW040
* Request your bespoke size or request a quote for a larger quantity
Amount: 1 units
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  • Cut-off time 3 pm
  • Free delivery over £150 *
  • 30 Days Returns

* Please refer to our delivery policy page. For any queries please contact us.

Medium Double Wall Cardboard Boxes Product Details

E-commerce businesses often need to strike a happy medium. The medium double wall cardboard box is the ideal packing solution for those average-size products that just need the middle ground. The medium box size is also a great compromise to keep in store in case of fluctuations in demand.

The double-fluted corrugated cardboard is both durable and versatile, and protects the encased products against drops, shakes, and – most importantly – side impacts while moving on conveyor belts.

Recommended for

  • Intermediate-size products such as art prints, accessories and electronic devices that need an added layer of protection. The double-fluted corrugated cardboard measures 5 mm and is ideal for heavier shipments up to 15 kg (or stacked shipments up to 10 kg). But this recommendation may vary depending on the nature of the product and the void fill or protective material used. It also may vary depending on the shipping method used.


  • Box thickness of 5 mm with a brown cardboard recycled paper quality up to 100gsm

  • All dimensions shown are internal dimensions

  • 100% recyclable corrugated board made from recycled fibers

  • Those products are not designed to be used for heavy duty products unless stated otherwise, not to be used under high humidity or high temperatures conditions

  • All dimensions may vary by up to 3mm

Key Features

  • Ideal for heavier and more fragile items

    Medium double wall cardboard boxes can support a weight of up to 15 kg or up to 10 kg for stacked shipments. The five layers of alternating paper and flute make it sturdy and reliable, so it can easily withstand the adversities of a return shipment and protect the items against bumps and shakes that can cause damage. It is also ideal for stacking on a warehouse shelf or on a fully loaded pallet since it can easily withstand the weight of boxes on top.

  • 100% eco-friendly

    DS Smith packing solutions supports your brand quality and corresponds to the value of the product in the box. Both your company and your customers will appreciate boxes that are 100% biodegradable and entirely made of recycled fibres. A buying decision that will help you position your business in a positive light and set your company apart from competitors.

  • Reuse multiple times

    Sturdy and robust, our medium double wall carboard boxes can be reused multiple times. The cardboard boxes withstand the rigors of shipment, and you can use them in several shipping and storage cycles to avoid spending time on a myriad of orders.

Want to order in bulk?

Please contact us via email at

How to measure a box?

When measuring a cardboard box, it is important to consider three key dimensions: length, width and height. These measurements provide the internal dimensions of the carton, allowing you to define the space available to pack products and ensure they fit properly.

The dimensions provided on our website are in Millimetres and are following the order LENGTH x WIDTH X HEIGHT.

To measure correctly a cardboard box follow these instructions:

1. Length: start by measuring the longest side of the box base

2. Width: rotate the box 90 degres and measured the other side of the box base

3. Height:measure the distance from the base to the top

How to easily assemble your double wall cardboard boxes?

How do we test our boxes resistance?

DISCS ™, the DS Smith industry-leading testing process

 DISCS ™ is DS Smith testing process that determines whether packs can survive the bumps and scrapes of the average e-commerce supply chain. Online orders sometimes need to survive up to 50 touch points, so choosing the right pack is an important decision.

If you would like the security of knowning that your boxes will fully protect your product, please contact our Customer Service. We can offer you a DISCS ™ test for your product. Get in touch with us by phone at 0808 1691 030 or e-mail at

What makes ePack sustainabile?

In today's society, sustainability has become a key focus. Consumers who are conscious about the environment are demanding eco-friendly packaging solutions. DS Smith ePack offers packaging solutions that are 100% eco-friendly, using fibres from responsible sources to combat deforestation. They use recycled or virgin paper from a certified chain of custody, and their corrugated cardboard packaging is both recyclable and biodegradable.

DS Smith ePack prioritizes sustainability by using responsible sources, recycled or virgin paper, and recyclable and biodegradable materials. Consumers consider sustainability as a crucial factor in their purchasing decisions, and non-sustainable packaging can lead to negative consequences for companies. Eco-friendly packaging not only benefits the environment but also improves brand image and reduces the carbon footprint.

What is our Circular Design Metrics?

One of the most important principles of the circular economy is designing for circularity, which involves products and services being designed with their end-of-life in mind, making it easier to recover and regenerate materials.

DS Smith developed a series of circular design metrics which give us an accurate picture of the degree of implementation of circular design principles in the production of our packaging solutions and provide quantifiable data to show how circular a given packaging solution is and allow quick identification of the areas of improvement required.

Our Circular Design Metrics measure Supply Chain Optimisation, Recyclability, Planet Safety, Material Utilisation, Renewable Sources, Recycled Content, the Carbon Footprint and Design for Reuse.

* This circularity information was made by using the information of an average double wall box.

What does FSC label means?

FSC (Forest Stewardship Council) labelled paper is an important choice for individuals and businesses looking to prioritize sustainability and responsible forest management. Using FSC labeled paper offers numerous benefits. It supports responsible forest management, reduces environmental impacts, promotes social responsibility, meets consumer demand for sustainable products, and ensures compliance with regulations and standards. By choosing FSC labeled paper, individuals and businesses can make a positive impact on the environment and contribute to a more sustainable future.

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