Postpack - UK Packaging Supplier

Cardboard Mailing & Postal Boxes Single Wall (Style 0421)

Strong self-assembly single wall corrugated cardboard mailing postal box / carton in a range of popular sizes & colours suitable for a variety of mailing & packaging applications
This style of mailing box is known in the packaging industry as an 0421 (also referred to as an 0470 which is very similiar) & has no side flaps & a small tuck in front flap
The front flap tucks inside
This results in a slightly cheaper mailing box option as it tends to use less material in it's construction than other mailing box styles
This style is usually used when the box height is bigger than the length or width
A self seal strip can also be applied by us as an optional extra
Unless otherwise stated all dimensions given are internal
Prices exclude VAT

Cardboard Postal Mailing boxes - FAQs

Q. What is FEFCO & what is a FEFCO style?
A. FEFCO is the industry's internationally recognisable box, carton & case code & there are a range of standard box styles which are given a unique number so they can easily be identified worldwide.

Q. What board grade are your mailing boxes?
A. All the mailing boxes are supplied in a singlewall board grade, that is, one layer of corrugated fluting with a layer of paper on either side.

Q. The size is spot on and the colour is great but it doesn't seem substantial enough. Can I have a heavier duty board?
A. We can supply our mailing boxes in a number of grades. Please speak to one of our sales representatives, who will advise you on the grade most suited to your individual needs, subject to a minimum order quantity.

Q. What style are the mailing boxes?
A. The majority of our mailing boxes are an industry based standardised style known as 0427. A small percentage are 0470 and some are 0421. These references are given to the box style by FEFCO & ESBO, the international box style regulators. FEFCO-ESBO are responsible for setting references for all box styles internationally.

Q. Can you make any style of mailing box?
A. We manufacture our standard range of mailing boxes to a pre set style, however we can manufacture virtually any style you want. Alternatively you can suggest your own mailing box style or we can suggest or design a mailing box style for you (Please note that any new mailing box styles including other FEFCO-ESBO styles will incur a one off tooling charge).

Q. I am not sure if a particular box is going to be suitable, what should I do?
A. In this instance the best course of action is to request a free mailing box sample. This way you can check that the box size, style and board grade are suitable for the job.

Q. Can I have my company logo/details printed onto the mailing boxes?
A. We provide a comprehensive print service, allowing you to choose from a huge range of colours & finishes. This would be subject to a minimum quantity and tooling charge. For those who wish to have a logo designed, we also offer an in-house design service. Please call our sales team for further details.

Q. Do I need any further products to seal the mailing box before mailing?
A. Many of our mailing boxes feature tabs for closure of the box. It is unlikely that this alone will be enough to secure your item in transit through a postal or courier service.
We recommend that either packing tape and/or a self seal strip be used to ensure your product arrives as intended. Both of these are available on our site.

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