Double Wall Cardboard Boxes are standard 0201 style boxes that are manufactured using thicker and stronger cardboard so they will carry more weight and keep your items safer as they travel to their destination. Double wall cardboard has two sets of corrugated (zigzag) paper layers sandwiched between three layers of paper. Our range of double wall cartons are ideal for packing items to send on courier or boxing heavy items for long term storage. The extra strength of these boxes makes them perfect for most applications in manufacturing, distribution, engineering, and wholesale industries throughout the uk.Strong and rigid, this selection of double wall cardboard boxes sizes are a great option for packaging and sending those extra special items that need a bit extra care via Royal Mail or a Courier service. Manufactured to an exacting quality level and offer good resistance to vertical crushing, humidity, and temperature fluctuations. Also tested for use with our packaging tapes to ensure a secure parcel. Double Wall Corrugated Cardboard means it has three layers of paper with two layer of 'zigzag' paper in the middle. The paper has a strong kraft finish but still uses over 75% recycled material! The perfect environmentally friendly packaging solution.