# Double wall cardboard boxes - 370 x 350 x 250mm ## Cardboard boxes 370 x 350 x 250 mm – a box that comes back too With a return or exchange, the box makes two journeys instead of one – and the second time, it is packed by someone without a packing line. That calls for board with something in reserve. At **370 x 350 x 250 mm**, this model has room for the product plus a generous layer of void fill, even if the customer packs it a little more roughly. Since 2007, we have been the go-to wholesaler for [double wall shipping boxes](en/cardboard-boxes/folding-boxes/cardboard-boxes-double-wave), and this size is often used where returns are part of the process. 7 mm BC flute double wall board is no luxury here. On the first journey the box is tightly packed and factory-fresh; on the return it has already been cut open and taped shut again. Single wall board often doesn't have that second round in it; double wall generally does. ### Where this size earns its keep **Returns packaging:** webshop orders that can go back in the same box. **Exchange and repair services:** equipment travelling back and forth between customer and service point. **Demo and sample shipments:** materials that visit several customers in turn. ### Specifications **Internal dimensions (L x W x H)**370 x 350 x 250 mm**Material**Corrugated board**Quality**Double wall, 7 mm**Flute type**BC flute**Colour**Brown**Print**Unprinted**Contents per pack**15 boxes**Weight per pack**8.15 kg**Packs per pallet**16### Why double wall for returns ✔ **Withstands two journeys** – corners and flaps stay intact. ✔ **Room for void fill** – even when the customer packs less carefully. ✔ **Can be resealed** – a second strip of [tape](en/tape) over the seam is enough. ✔ **Unprinted** – a return label over the old address causes no confusion. Ordered on working days before 3:30 PM? Then your order will be shipped the same day. Do you have questions about which size of [double wall shipping boxes](en/cardboard-boxes/folding-boxes/cardboard-boxes-double-wave) is best suited to your situation? Please don't hesitate to contact us — by phone on [+31 184 – 614256](tel:+31%20184%20-%20614256), via [info@kortpack.nl](mailto:info@kortpack.nl) or via [WhatsApp](https://wa.me/31184614256). ## Frequently asked questions ### How many times can the same box go back and forth? Two to three journeys is typical. After each trip, check the four vertical corners: if they are crushed, the stacking strength has gone and the box is better off being recycled. ### Can the customer reseal the box themselves? Yes, provided you open the box along the top seam and not across the flaps. Add a strip of tape to the shipment, so the customer doesn't have to look for any. ### Isn't this size too large for a single item? For one small item, yes. 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