Free Dpd Next Day Delivery on orders £100 or above (UK Mainland only, Cut off time 3pm)

Large Cardboard Boxes - Heavy Duty Single Wall - 12x12x12 Inch

Large Cardboard Boxes - Heavy Duty Single Wall - 12x12x12 Inch

Large Cardboard Boxes - Heavy Duty Single Wall - 12x12x12 Inch

Regular price £19.99
Next Day Delivery
Same Day Dispatch

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Large Cardboard Boxes for Shipping

Large cardboard boxes made from strong single-wall cardboard are known for their durability and ability to keep their shape, even when carrying heavy items. These boxes are not only robust but also good for the environment because they can be broken down naturally and turned into compost, making them a great option for those who care about the environment. A key feature of these boxes is their scored design, which allows users to adjust the size of the box to meet different storage and shipping requirements. The boxes are usually brown, giving them a neat, professional appearance suitable for both personal and business use. Choosing these cardboard boxes ensures strength, adaptability, and a commitment to environmental care.

Length 304mm
Width 304mm
Height 304mm

Suitable for Storage

Our packing cardboard boxes, measuring 12x12x12 inches with a single wall, can generally carry up to 25 kilograms. These boxes are light but strong, able to hold a significant weight without losing their shape. Their design is both practical and efficient, making them suitable for different packing requirements.

Made from 100% Recycled Material Durable Single Wall Cardboard Easy Storage Flatpack

Comprehensive Packaging Supplies

At Mr Bags, we supply a variety of packaging materials suitable for any item you need to send. Our range includes small cardboard boxes perfect for smaller items as well as bigger moving boxes designed for larger goods, ensuring you find the right size for every need. We also offer essential extras like mailing bags and paper bags, providing everything you need for secure and effective mailing or storage. Whether you’re packing for a relocation, sending products, or just storing belongings, Mr Bags has all the packaging supplies you require.

Durable Cardboard Storage Boxes

Our cardboard storage boxes are made from single-wall cardboard, providing a light yet robust option for your storage requirements. The single-wall construction makes these boxes easier to manage and more affordable, while offering sufficient protection for items during transit and storage

Sustainable Packaging

Our eco-friendly packaging solutions are designed to be biodegradable, compostable, and recyclable, demonstrating our dedication to environmental care. These characteristics allow our boxes to be turned into new products, greatly diminishing waste and the consumption of new materials.

Drop Protection

Our cardboard boxes are specifically designed to withstand the rigors of a fast-paced environment, including accidental drops. In settings where quick movement and occasional mishaps are common, these boxes provide essential protection against small drops and bumps especially when paired with bubblewrap

Flatpack Assembly

Our shipping boxes arrive flat-packed, enhancing storage and transport efficiency. This design allows them to take up less space, facilitating the storage of large quantities until they are required. These boxes are also quick and straightforward to put together, enabling you to ready your shipments rapidly when time is critical

100% Recyclable
Single Wall

Royal Mail 24 Tracked

Dispatched same day if ordered before 5 pm Monday to Friday. Please allow up to 1-2 days for delivery.


DPD Next Day

Dispatched same day if ordered before 3 pm Monday to Thursday. Not available to Scottish Highlands & Islands.


Free on orders over £100