Royal Mail PiP Boxes

Our Pricing in Proportion (or PIP) Boxes are specifically designed to fit through the 25mm slot that Royal Mail class as a large letter. Three of our five postal box sizes below fit through the 25mm large letter size slot, which will minimise your postal costs along with your speed to pack with these lightweight easy to assemble postal boxes. Delivered to you flat packed for easy storage and delivery.

These boxes are perfect for sending CD’s, Books, DVD’s, Gift, Electronics, Games etc.

Not sure which size packaging is right for your product? Use our Royal Mail PiP Packaging guide for all the information on Royal Mail PiP requirements, including our recommended products for each delivery option: Letterbox friendly postal packaging – Royal Mail PiP Boxes.

• Quick & easy to assemble
• Strong durable protection
• FSC-certified as sourced from sustainable forests
• Delivered flat-packed, easy to assemble

Up to 30% off on all Postal Boxes – for a limited time only!