Product Details
PiP Large Letter Boxes – Durable, Eco-Friendly, and Cost-Effective
Protect your parcels while keeping shipping costs low with our PiP Large Letter Boxes. Designed for maximum protection, these boxes are the perfect solution for sending items as a “large letter,” combining efficiency with sustainability.
Key Features:
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Eco-Friendly Materials: Made from 70% recycled, 100% corrugated paper, fully biodegradable, compostable, and recyclable.
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Cost-Efficient: Send parcels as “large letters” to reduce postal costs without compromising protection.
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Sturdy & Rigid: Single-wall 125K&T E Flute corrugated board provides superior strength compared to standard mailers.
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Quick Assembly: Lightweight yet durable design ensures fast and easy setup, saving time in your packing process.
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Professional Presentation: A more polished, professional packaging solution than traditional mailing bags.
Material Composition: 100% Corrugated Paper
Recyclable / Biodegradable / Compostable: Yes
Recommended Storage Temperature: 13–21°C (55.4–69.8°F)
Choose PiP Large Letter Boxes for reliable protection, eco-conscious shipping, and a professional unboxing experience every time.
Shipping & Returns
We aim to get your order to you quickly and safely. For full details on delivery times, fees, and collection options, please visit our Shipping Policy Page
Changed your mind or need to return an item? Our hassle-free process is explained on our Returns & Refunds page.
48hr Delivery
UK-wide dispatch – fast, reliable and fully tracked.
Best Price Guaranteed
We won't be beaten – transparent pricing every time.
Free Replacement
Lost or damaged? We'll resend it with no hassle.
Reorder in One Click
Saved sizes and quantities for repeat orders instantly.
Prefer to order by WhatsApp?
Message your size and quantity and we confirm stock, price and dispatch in under 2 minutes no cart,
no account needed. Ideal for bulk or repeat wholesale orders.
Frequently asked questions
Royal Mail PiP (Pricing in Proportion) Boxes are specially designed postal boxes that meet Royal Mail size guidelines for Large Letter and Small Parcel services. They help reduce shipping costs while keeping your products secure during transit.
These boxes are ideal for shipping small products such as cosmetics, electronics, books, accessories, jewellery, clothing, gifts, stationery, and other lightweight items that fit within Royal Mail's size requirements.
Yes. Our Royal Mail PiP Boxes are manufactured from strong corrugated cardboard that provides excellent protection against crushing, bending, and everyday handling during delivery.
Yes. All Royal Mail PiP Boxes are delivered flat-packed to save storage space and reduce shipping costs. They are quick and easy to assemble without requiring specialist tools.
Choose a box based on the dimensions of your product and the Royal Mail service you intend to use. We offer a range of PiP Box sizes designed to comply with Royal Mail guidelines, making it easy to find the right option for your packaging needs.
