320 x 320 x 70mm 0427 Black Postal Boxes


Buy 0427 style black postal boxes with a length of 320 mm, a width of 320 mm and a height of 70 mm. These internal dimensions are equivalent to 12.5 x 12.5 x 2.7 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 £3.468 £86.70 £14.82
50 £3.348 £167.40 £14.82
100 £3.180 £318.00 £17.48

These black 320 x 320 x 70 mm boxes are made in the 0427 style. This is one of our tallest and widest die cut boxes which can easily fit a medium/large sized product or a couple of different products.

If a die cut box isn’t what you’re looking for, 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

Try our cardboard box size guide for further information on measuring your items and choosing the box that's right for you.

For more information of any sort, 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.