custom double wall boxes

Custom double wall boxes use corrugated board with two fluted layers, giving far greater crush resistance and stacking strength than single wall cartons at a made to measure size. In short, custom double wall boxes suit heavy, fragile or high value goods that must survive warehousing, stacking and courier handling without the carton walls bowing or collapsing.

How custom double wall boxes get their strength

Corrugated board is built from liner papers bonded to fluted layers. Those flutes act like a row of arches, spreading loads down through the board rather than across it. With two fluted layers, the panel becomes stiffer, the corners hold squarer and the base resists sagging under weight. Strength is not only about the board though. A box made to the size of the product stops the contents shifting, which is when most damage happens. Tight sizing also reduces the void fill you need to buy and store. For very heavy loads, the maker may suggest a stronger flute combination, reinforced tape advice or internal dividers, so each item carries its share of the stack load rather than pressing on its neighbour.

Where double wall board earns its keep

Typical uses include ceramics, glassware, metal parts, books in quantity, small appliances and multi item trade orders. It also suits export consignments and palletised storage, where cartons sit under load for weeks. If your goods travel as individual parcels, check packed size and weight against Royal Mail small parcel limits or your courier rules before the size is fixed, because a strong box in the wrong size band can still cost more to send.

Stacking strength in storage

Ask how the boxes will be stacked, how high and for how long. A carton that survives a short courier trip may still creep and lean after a month under load in a warm warehouse, so honest stacking details help the maker choose the right grade first time.

Designing custom double wall boxes that still look professional

Strength and presentation can work together. Exteriors can carry a bold logo, product wording and handling marks such as this way up or fragile, printed clearly enough to be read at arm length in a busy warehouse. Inside, dividers, fitments and layer pads keep items apart and present them tidily on arrival. Compare our Double Wall Shipping Boxes with Heavy Duty Shipping Boxes for the heaviest work, and see Custom Shipping Boxes for printed transit cartons. Firms planning a full order cycle can also read about how to order custom shipping boxes with artwork and sizes agreed before production.

Fitments that stop movement

Movement inside the carton is the enemy. Card dividers suit bottles and jars, corner posts protect edges on framed goods, and a snug layer pad stops lids scuffing. Because fitments are cut from board, the whole pack can usually be recycled together, which customers appreciate and packing staff find simpler than mixed materials.

Ordering from a UK manufacturer

Custom Postal Boxes, a project of Vertex Packaging in Wolverhampton, makes custom double wall boxes in house with low minimum order quantities, free design support and free UK delivery. Prices are quoted per job because they depend on size, material and quantity. Share your product weight, internal dimensions and stacking plans through the contact page for a quote and you will receive a specification built around the journey your goods actually make.

FAQs about double wall cartons

When should I choose double wall board over single wall?

Choose double wall board when the packed item is heavy, fragile, valuable or likely to be stacked under other cartons. The second fluted layer adds crush resistance and stiffness, which helps boxes keep their shape through warehouse handling and longer courier journeys.

Can double wall boxes be printed with my branding?

Yes. Double wall boxes can carry logos, handling guidance and full colour artwork, although very fine detail prints more crisply on smoother single wall or litho finished surfaces. Most firms keep transit print bold, with clear handling marks and a clean brand panel.

What measurements does the maker need?

Send internal length, width and height in millimetres, the packed weight, and how the boxes will be stacked and shipped. Add details of any inserts or dividers you need, because internal fitments change the usable space inside the carton.

Are double wall boxes recyclable?

Corrugated cardboard is widely recyclable in the UK once tape and any plastic fitments are removed. Keeping the box design in one material, such as card inserts rather than plastic foam, makes recycling simpler for the customer at the end of use.