• There are certain restrictions and banned items which you can't send through the post. See the full list of what items are considered 'dangerous goods'.
• Sometimes we have to remove or relocate a post box. This can be because of safety or security, but never due to under-utilisation. Find out how and why here.

Boxes and Tubes Royal Mail Boxes and Postal Tubes Post your items safely and securely with one of our cardboard boxes or cartons. Sturdy and easy-to-assemble, these cardboard mailing boxes are the ideal way to protect your parcel.

Large Letter Postal Boxes (Royal Mail PiP Boxes)

Royal Post Tracking Number

What is a Large Letter PiP Box?

Large letter boxes or PiP boxes as they’re often called are a range of boxes in different sizes that have all been designed to fall within Royal Mail large letter sizes. This allows users of these boxes to send out items at a reduced rate of postage and can help save considerable sums of money on postage costs.

So to start saving on your postage costs..

Have items too large for our Large Letter Boxes? Check our superb quality strong die cut Small Parcel Boxes..

Did you know?

Royal Mail Post Box Locations

Defendapack were the first company to introduce a range of Large Letter Pricing in Proportion boxes or PiP boxes designed to work within Royal Mail’s Large Letter category…

Large Letter PiP Boxes in terms of Royal Mail postage are a range of postal boxes (and to a lesser extent envelopes) first introduced by us back in the middle of 2006. They were essentially boxes designed to help customers save vast amounts of money on their postage as Royal Mail introduced size based pricing, or as they termed it ‘Pricing in Proportion’ — which had the result of raising postage prices of items exceeding the strict size guidelines they’d set.

Our original range of large letter boxes were based on envelopes with C5, C4 & DL (business envelope) sizes proving massively popular. Fargo season 2 download. Along with a small or Mini PiP box & a Maxi PiP box which maximised the size allowance with Royal Mail we helped numerous clients dramatically reduce postage charges when e-commerce and online trading were still relatively new phenomenons.

Originally marketed as ‘Pricing in Proportion Boxes’ through our website, discussions on the still relatively new eBay UK Power Seller boards, just prior to Royal Mail introducing the extra charges, revealed a huge demand for the products. However, the character limits for eBay listings at the time meant that Pricing in Proportion Boxes needed abbreviating to PiP boxes.

The term PiP boxes is now used by most of our competitors but we strongly believe our original strong, great quality PiP boxes still represent the ultimate in Large Letter Postal Boxes and our wide range of sizes still offers far more choice than you will find amongst our competitors.

Small Parcel Boxes --- Pricing in Proportion rules for parcels or packets were introduced some years after those for letters and again we were quick to react with a range of superb quality Royal Mail small parcel qualifying boxes which you can check out here

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so no nasty surprises at checkout.

With the vast majority of items listed on this site being supplied without an additional charge for postage — you can shop with confidence that the price you see will be the price you pay at checkout.

The only time you may have additional charges is when you’re buying bulk quantities, very large items or you’re located offshore or in certain parts of the Scottish Highlands.

All of our prices are shown Inclusive of VAT and Free Shipping to MOST UK Mainland addresses.

Please note that we cannot deliver to PO boxes.

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If you are ordering outside of the UK, please click here to see our international rates

If you live in the United Kingdom or have recently visited, you may have noticed that British red post boxes have some writing on them. There are two most common post boxes that can be categorized by their embossed writing:

• The GR post box
• The ER post box.

What is the meaning of these letters on the postboxes?

. . .

On many postboxes, the clue to the meaning of these letters is on the postbox itself because you’ll often find these letters seen right next to a crown.

The letters are called the “Royal Cypher” and they signify the King or Queen that was the monarch at the time when the postbox was erected.

A GR post box was put up during the era of King George (G stands for George, R stands for Rex, which is King in Latin). If there are no more letters around the GR, then it’s likely from the period of King George V, and if it’s from the era of King George VI you may notice a little “VI” next to the GR.

An ER post box was set up either during the rule of King Edward or during the time of Queen Elizabeth (E standing for Elizabeth or Edward, and R standing either for Rex or for Regina which is Queen in Latin). To know the exact monarch the postbox is honoring, have a look at the accompanying numbers. For example, if you notice a little “II” near the ER it indicates the postbox was installed in the era of Elizabeth II rather than in Edwardian times. Likewise, a “VII” or “VIII” after the ER indicates the E stands for Edward. You’ll never see a postbox from Elizabeth I’s era since she reigned between 1558-1603, long before the first red pillar post box was put up (in 1853).

Although GR and ER postboxes are perhaps the most commonly seen post boxes, you may also spot a VR on occasion. Next time you’re next to a post box, look out for these letters to work out when it was installed:

• VR post box – Queen Victoria (postbox put up between 1853-1901)
• ER VII post box – Edward VII (postbox put up between 1901-1910)
• GR post box – George V (postbox put up between 1910-1936)
• ER VIII post box – Edward VIII (postbox put up between 20 January 1936 – 11 December 1936 before he abdicated the throne to marry Wallis Simpson)
• GR VI post box – George VI (aka Bertie from the King’s Speech: postbox put up between 1936-1952)
• ER II post box – Elizabeth II (postbox put up between 1952-recently)

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