Postal Boxes

Postal boxes are a sturdy and reliable packaging solution designed for shipping and protecting items through the mail or courier networks. Made from strong corrugated or solid board, they provide excellent protection against crushing, impact, and environmental factors during transit. Available in a wide range of sizes and styles—including self-seal, and letterbox-friendly options—postal boxes are ideal for e-commerce, retail, and business use. Easy to assemble and often recyclable, they offer a professional, secure, and eco-conscious way to deliver products while maintaining a neat and branded presentation.

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52 products

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  • Cardboard Boxes Double Wall - 12" x 9" x 5" (305mm x 229mm x 127mm) Pack of 15

    From £10.50
    From £10.50
    Double Walled Cardboard Boxes

  • Cardboard Boxes Single Wall - 9.5" x 9.5" x 4.5" (241mm x 241mm x 114mm) Pack of 25

    From £8.00
    From £8.00
    Single Walled Cardboard Boxes

  • Cardboard Boxes Single Wall - 13.5" x 9.5" x 4.5" (343mm x 241mm x 114mm) Pack of 25

    From £10.50
    From £10.50
    Single Walled Cardboard Boxes

  • Cardboard Boxes Single Wall - 10" x 8" x 6" (254mm x 203mm x 152mm) Pack of 25

    From £7.50
    From £7.50
    Single Walled Cardboard Boxes

  • Cardboard Boxes Single Wall - 18" x 12" x 12" (457mm x 305mm x 305mm) Pack of 25

    From £21.50
    From £21.50
    Single Walled Cardboard Boxes

  • Cardboard Boxes Single Wall - 18" x 12" x 10" (457mm x 305mm x 254mm) Pack of 25

    From £20.50
    From £20.50
    Single Walled Cardboard Boxes

  • Cardboard Boxes Single Wall - 18" x 12" x 7" (457mm x 305mm x 178mm) Pack of 25

    From £19.50
    From £19.50
    Single Walled Cardboard Boxes

  • Cardboard Boxes Single Wall - 18" x 12" x 4.5" (457mm x 305mm x 115mm) Pack of 25

    From £17.26
    From £17.26
    Single Walled Cardboard Boxes

  • Cardboard Boxes Single Wall - 12" x 9" x 12" (305mm x 229mm x 305mm) Pack of 25

    From £15.76
    From £15.76
    Single Walled Cardboard Boxes

  • Cardboard Boxes Single Wall - 18" x 12" x 3" (457mm x 305mm x 76mm) Pack of 25

    From £15.50
    From £15.50
    Single Walled Cardboard Boxes

  • Cardboard Boxes Single Wall - 17" x 10.5" x 5.5" (432mm x 267mm x 127mm) Pack of 25

    From £14.26
    From £14.26
    Single Walled Cardboard Boxes

  • Cardboard Boxes Single Wall - 13" x 10" x 12.5" (330mm x 254mm x 318mm) Pack of 25

    From £17.00
    From £17.00
    Single Walled Cardboard Boxes

  • Cardboard Boxes Single Wall - 12" x 9" x 9" (305mm x 229mm x 229mm) Pack of 25

    From £8.80
    From £8.80
    Single Walled Cardboard Boxes

  • Cardboard Boxes Single Wall - 12" x 9" x 7" (305mm x 229mm x 178mm) Pack of 25

    From £8.60
    From £8.60
    Single Walled Cardboard Boxes

  • Cardboard Boxes Single Wall - 12" x 9" x 6" (305mm x 229mm x 152mm) Pack of 25

    From £8.40
    From £8.40
    Single Walled Cardboard Boxes

  • Cardboard Boxes Single Wall - 12" x 9" x 5" (305mm x 229mm x 127mm) Pack of 25

    From £9.76
    From £9.76
    Single Walled Cardboard Boxes

  • Cardboard Boxes Single Wall - 12" x 9" x 4" (305mm x 229mm x 102mm) Pack of 25

    From £9.10
    From £9.10
    Single Walled Cardboard Boxes

  • Cardboard Boxes Single Wall - 12" x 9" x 3" (305mm x 229mm x 76mm) Pack of 25

    From £8.50
    From £8.50
    Single Walled Cardboard Boxes

  • Cardboard Boxes Single Wall - 8" x 6" x 6" (203mm x 152mm x 152mm) Pack of 25

    From £6.26
    From £6.26
    Single Walled Cardboard Boxes

  • Cardboard Boxes Single Wall - 8" x 6" x 4" (203mm x 152mm x 102mm) Pack of 25

    From £6.00
    From £6.00
    Single Walled Cardboard Boxes

  • Cardboard Boxes Single Wall - 10" x 10" x 10" (254mm x 254mm x 254mm) Pack of 25

    From £12.10
    From £12.10
    Single Walled Cardboard Boxes

  • Cardboard Boxes Single Wall - 9" x 9" x 9" (229mm x 229mm x 229mm) Pack of 25

    From £9.80
    From £9.80
    Single Walled Cardboard Boxes

  • Cardboard Boxes Single Wall - 8" x 8" x 8" (203mm x 203mm x 203mm) Pack of 25

    From £7.30
    From £7.30
    Single Walled Cardboard Boxes

  • Cardboard Boxes Single Wall - 7" x 7" x 7" (178mm x 178mm x 178mm) Pack of 25

    From £6.70
    From £6.70
    Single Walled Cardboard Boxes

  • Our Story

    At Reynopoly Ltd, we are passionate about providing high-quality packaging solutions that help businesses across the UK thrive. Since our founding, we have focused on serving sectors such as retail, food, and industry, delivering products that protect, present, and promote our clients’ goods. Our goal has always been to combine functionality with sustainability, giving our customers packaging solutions they can trust.

  • Our Products

    We specialize in a wide range of packaging materials, including polythene bags, bubble wrap, pallet wrap, and protective packaging. Sustainability is a core part of our business, and we offer eco-friendly options such as biodegradable tapes, recyclable mail bags, and paper-based void fill materials. Every product we provide meets strict quality standards, including BRC certification for food-safe packaging, ensuring reliability for our clients’ most important shipments.

  • Our Commitment

    At Reynopoly, customer satisfaction is our top priority. We work closely with businesses of all sizes, from small startups to large enterprises, to deliver tailored solutions that meet their unique packaging needs. Our team provides fast quotations, responsive support via phone, email, and WhatsApp, and guidance to help businesses select the best materials for their operations.

  • Our Location

    Operating from our facility in Peterborough, at Polythene Place, Newark Road, Eastern Industry, PE1 5YD, we provide nationwide delivery across the UK. Our central location allows us to serve our clients efficiently while maintaining a strong focus on quality, sustainability, and customer service. At Reynopoly, we’re more than a packaging supplier—we’re a partner in your business’s growth and success.

Packaging Supplies to Fit Your Needs

  • Packaging Supplies to Fit Your Needs

  • Reynopoly

    Stock Holding

    We provide a stock holding service for up to 3 months - Contact us

  • Reynopoly

    Fast & Free Delivery

    Enjoy quick delivery with a variety of flexible shipping options - Learn more

  • Reynopoly

    Custom Packaging

    Bespoke products tailored to meet your requirements - Learn more

  • Reynopoly

    Eco-Friendly Options

    Protect your products while making a positive impact on the planet - Shop now

  • Reynopoly

    Bulk Pricing Available

    Enjoy greater savings when you purchase larger quantities - Contact us

  • Reynopoly

    BRC Certified

    Ensuring the highest standards of food safety and quality - Learn more
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