double wall shipping boxes

double wall shipping boxes are cartons made from corrugated board with two fluted layers, giving thicker and stronger walls than a single wall carton. Businesses choose double wall shipping boxes for heavy goods, fragile items, stacked storage and long courier journeys where crush resistance matters. Custom Postal Boxes supplies these boxes from Wolverhampton for UK businesses, with custom sizes and print available alongside low minimum quantities, free design support and free UK delivery.

How double wall shipping boxes are made

A double wall board has two layers of wavy fluted paper sandwiched between three flat liner papers, five layers in total. A common combination uses two different flute sizes together, which balances cushioning with stacking strength, and the finished board is around seven millimetres thick. That build explains the real world difference you feel when you handle one: the walls flex less, the corners stay squarer and the box keeps its shape when other parcels are placed on top of it in a van or warehouse.

Double wall compared with single wall

Single wall board has one fluted layer and suits light, compact goods that travel short distances or sit inside another protective pack. Double wall board suits weight, fragility and stacking. If your returns mention crushed corners, split tape seams or boxes that arrive out of shape, moving up a board grade is often more effective than adding ever more loose fill inside a weak carton. For the heaviest work, compare this range with our heavy duty shipping boxes for demanding loads.

Why stacking strength matters as much as drop strength

Parcels are squeezed as well as dropped. In a courier network your box may sit at the bottom of a pile, and in storage it may carry other stock for weeks. A wall that resists slow pressure protects contents just as surely as cushioning protects against a single knock. Choose the grade for the whole journey, not only for the moment of packing.

Choosing sizes and packing double wall shipping boxes well

Start with the internal size you need for the product plus its inner protection, then check the external size for your courier or Royal Mail service. Our standard format is covered by the double wall shipping boxes product range, while the wider cardboard shipping boxes collection helps if you need a different construction. Pack heavy items centrally, wrap fragile surfaces separately and fill remaining space so the load cannot shift. Tape the centre seam and the edge seams for heavy loads, and place the label on a flat top face where scanners can read it.

Common uses across UK businesses

Online sellers use these cartons for small appliances, books, ceramics, tools, parts and multi item orders. Warehouses use them for storage because the boxes stay upright and stack evenly. Movers and workshops value the same strength for dense contents that would bulge a lighter carton. Custom print can add handling guidance, your logo and a clear returns address panel, turning a purely functional carton into a recognisable part of your service.

Recycling, print and ordering double wall shipping boxes

Corrugated cardboard is widely recycled and these boxes can often be reused for returns or storage before recycling, which spreads their value further. Businesses that place packaging on the UK market should understand their duties under the GOV.UK guidance on packaging producer responsibilities. Custom Postal Boxes is a project of Vertex Packaging and manufactures in house, so custom sizes and printed runs sit alongside standard work. Send your sizes and quantities through our contact page for a quote; pricing depends on size, material and quantity.

FAQs about double wall shipping boxes

What is the difference between double wall and single wall boxes?

Double wall board has two fluted layers between three liners, while single wall board has one fluted layer. Double wall cartons are thicker, resist crushing better and suit heavy, fragile or stacked loads more reliably.

How much weight can double wall shipping boxes carry?

Capacity depends on board grade, box size, how the load is spread and how well the box is packed and taped. Share your product weight and journey details when you ask for a quote so the grade can be matched to the job.

Are double wall shipping boxes recyclable?

Yes, corrugated cardboard is widely recycled in the UK. Remove tape and labels where possible, keep the board clean and dry, and reuse sound boxes for storage or returns before recycling them.

Can double wall shipping boxes be printed with my branding?

Yes. Custom print can add your logo, handling guidance and delivery information to the carton. Print is planned with the box size and board grade as one specification, and pricing depends on size, material and quantity.