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Cardboard Envelopes

Find sturdy cardboard envelopes and rigid mailers designed to protect flat items like documents and prints. Our range includes customisable options like the Custom Cardboard Envelope and plain stock. For other mailing solutions, see our full selection of shipping envelopes.

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Cardboard envelopes provide essential protection for flat, delicate items that must not bend in transit. Ideal for shipping documents, photographs, art prints, and certificates, these mailers use a rigid board construction to maintain their shape. Every envelope includes a strong peel-and-seal adhesive strip for secure closure, streamlining your packing process and removing the need for extra tape.

Custom and plain cardboard envelopes

We offer a wide selection of customisable and unprinted cardboard envelopes to fit your brand's needs. You can apply your full-colour design, logo, or branding across the entire surface of the Custom Cardboard Envelope to create a memorable unboxing moment. For a more minimalist approach or for businesses that prefer to use their own stickers and labels, the Plain Cardboard Envelope provides a clean, professional look. We also supply corrugated options like the Custom Corrugated Envelope for items needing an extra layer of stiffness. You can order all our rigid envelopes in low minimum quantities, making them a practical choice for businesses of any size, from small Etsy shops to large corporate offices dispatching important paperwork. The sturdy build keeps your items in pristine condition, reflecting your brand's quality the moment it arrives.

Features of our rigid mailers

Our rigid mailers deliver efficiency and security. The self-sealing adhesive strip creates a strong, tamper-evident closure in seconds without needing tape. A built-in tear strip allows your customers to open the package easily upon arrival.

Corrugated and solid board rigid envelopes

Choose the right material for your specific shipping needs from our range of rigid envelopes. Solid board mailers are lightweight yet stiff, perfect for documents and photos. For slightly bulkier flat items like catalogues or thin books, corrugated mailers like the Plain Corrugated Envelope provide enhanced puncture resistance and rigidity. This material choice allows you to match the level of protection to the item you are sending, optimising both safety and shipping costs. If you need cushioning for more fragile items, consider our range of padded envelopes.

FAQ

  • What can I use cardboard envelopes for?

    Most often for safely shipping documents, but also as an alternative to a box for small, flat items - photos, certificates, prints, catalogues, CDs/DVDs, thin books or calendars. They protect the contents from bending.

  • What is the difference between a solid and a corrugated cardboard envelope?

    A solid cardboard envelope is made of smooth, solid board - thin yet very rigid, ideal for documents and photos. A corrugated cardboard envelope is more resistant to bending and impact, so it works better for heavier items such as catalogues or books.

  • Are cardboard envelopes suitable for shipping books?

    Yes, especially the corrugated version, which protects better against damage. For thin books a cardboard envelope is enough; for thicker or heavier titles a shipping box is a safer choice.

  • What document size fits in the envelope?

    A C4 envelope measuring about 32.4 x 22.9 cm fits an A4 document, and a C5 measuring about 23 x 16 cm - an A5 document. More sizes are available; you will choose them on the product page.

  • Can cardboard envelopes be printed, including inside?

    You can print the outer surface in full colour with your logo or graphic in the online editor. As standard we do not print inside a cardboard envelope - if you need this, contact us for an individual quote.