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"with so many different sizes & styles of postal boxes for you to choose from, we are sure to have the solution for you. If you can't find what you are looking for, call us on 01707 635353 and we will be happy to help"

Postal Mailing Boxes

self-seal instant cardboard postal mailing boxesOur postal mailing boxes, in a choice of 3 sizes, will save you time and money while providing extra strength and protection to a variety of shipped goods. They come flat-packed in one piece, which on opening cleverly forms an instant box for mailing as you press the inner base into position. Simply place your items inside, then seal the postal carton neatly and quickly with the adhesive strip – this feature gives secure closing with no tape required and allows easy opening too!

self-seal instant cardboard postal mailing boxes

Made from robust, high-quality cardboard, these postal     shipping boxes are economical, convenient and easy to store.

Give your fragile and delicate items high-level protection with    our postal mailing boxes. These postal shipping boxes, which are made from superior single wall corrugated board (with kraft finish), are ingeniously designed for easier and more convenient posting and packaging. They provide a smart and presentable packing solution to impress customers whilst ensuring products reach their destination in perfect condition.

In addition to their one-piece design and strength, the    cardboard postal boxes have a self-adhesive strip to make sealing neater and quicker. This strip also allows the recipient of the mailing box to open it painlessly using the pre-perforated tab.

To use these postal boxes for shipping, just open them up, press down the base inside, and the carton takes shape ready for you to pack your item – it’s that simple! No need for messy glue or tape.  Take a look at our video showing you just how quick and easy to use these postal boxes are!

All three sizes of our postal mailing boxes are within the Royal Mail's Medium Parcel size restrictions.  Supplied flat for easy assembly, and so much more convenient all-round than standard cardboard boxes. 

Top Choice PiP Packaging

white postal boxes for mailing and shippingWhite Postal Boxes

Our strong white postal boxes are an all-round top seller due to the attractive white outer, and self locking feature making them super easy to use.  Another great benefit is that all 4 sizes are within Royal Mail's Large Letter or Small Parcel sizing restrictions, thus saving those extra postage costs too!




Telephone us on 01707 635353
Monday - Friday 9:00am to 5:00pm
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