256 x 250 x 23mm 0426 Black Postal Boxes


Buy 0426 style black postal boxes with a length of 256 mm, a width of 250 mm and a height of 23 mm. These internal dimensions are equivalent to 10.1 x 9.8 x 0.9 inches. These black mailing boxes are die cut, which means they fold together with no need for tape. Boxtopia sells these boxes in packs of 25, 50 & 100.

Quantity Price per box Total price Delivery charge
25 £1.512 £37.80 £14.82
50 £1.464 £73.20 £14.82
100 £1.392 £139.20 £14.82

These 256 x 250 x 23 mm boxes are made in the 0426 style. They have the longest length and width of any of our 0426 boxes, but their shallow height makes them perfect for items that need to be transported flat.

If you want a different size or style box to the one you see here, explore our full range of cardboard boxes or build your own bespoke box. You can further customise any box you buy with our box printing service.

Check out our cardboard box size guide for more information about measuring your items and finding the box that's right for you.

For more information or to ask us any questions, please don’t hesitate to contact us using the number at the top of the screen or by sending an email to info@boxtopia.co.uk.

Delivery & payment information

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Boxtopia is committed to delivering your boxes as quickly as possible. It usually takes just a few days to make boxes from our stock board although, subject to workload, we can often supply products on a next day delivery if necessary. For larger quantities of boxes, it is more cost effective for us to buy the board in cut to size so that we can make the boxes without any waste material. Typically, we can despatch these within a week. If you have a deadline, just check with us first.
Important note: our delivery prices are valid for the UK mainland only.