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    Postal Boxes

    Postal Box manufacturer, Caps Cases, based at Newmarket and Glasgow, offer a wide selection of competitively priced user-friendly packaging available giving clients the opportunity to buy directly from the manufacturer. From the smaller sized mailers to larger parcel sizes all of our designs are tried and tested providing a safe and protective way of delivering your products via the postal system.

    As one of the UK’s leading corrugated cardboard packaging manufacturers, Caps Cases, are in a strong position to create the postal box design you are looking for. With state-of-the-art design and print facilities alongside some of the most sophisticated packaging manufacturing machinery and equipment, your product can be brought to life swiftly, in the quantities you need at a price that is very competitive against similar providers.

    In the first instance, please complete the Contact Us enquiry form or call our Sales Team and they will put you in contact with the relevant support you need.

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    Technical Information

    Royal Mail Parcel Size = 450mm (L) x 350mm (W) x 160mm (D)

    Large Letter Size = 353mm (L) x 250mm (W) x 25mm (D)

    Our packaging is 100% recyclable and all of our flexo inks are water based.


    Caps has a great reputation as a high quality printer, we can utilise either the digital process for small volume requirements or Flexo for larger quantities, we can print both inside and outside, to create a real consumer opening experience.


    Caps Cases has the ability to apply highly adhesive peel and seal hot melt closures as well as the more traditional finger lift tape.

    Want to talk to us face to face

    If you are looking for something bespoke? Arrange a call or site visit to meet with a dedicated account manager and designer to discuss your requirements in more detail. If you’re looking to develop a range of postal packaging, our in-house team of structural designers and sales team will guide you through the process from start to finish.

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