Brown solid cardboard Lettpac C3 324x458 envelope

📦 Brown Solid Cardboard Lettpac C3 Envelope (324×458 mm) – safe and eco-friendly packaging for larger, flat shipments!

Are you looking for a rigid, durable envelope that can accommodate large documents, posters or catalogs and at the same time ensure their impeccable condition during transport? Lettpac C3 (324×458 mm) is a solid cardboard envelope with a weight of 400 g/m², designed with professional companies, offices and online stores in mind. It is distinguished by high durability, easy recycling and a natural, brown finish, emphasizing the solid character of the shipment. All our solid cardboard envelopes have an FSC certificate, which guarantees responsible sourcing of raw materials.

🌟 Details of the construction and advantages of Lettpac C3 (324×458 mm)

• Durability and stiffness: solid cardboard 400 g/m² protects against crushing and deformation, effectively securing the content even during a longer journey.
• Content protection: the rigid structure keeps large documents, posters or catalogs in perfectly flat form. If the envelope has expanded sides, you can easily fit thicker materials as well.
• Eco-friendliness and FSC certificate: the envelope does not contain plastic elements, it is 100% paper and is recyclable – a great choice for companies that care about the environment.
• Professional look: brown cardboard looks solid and aesthetic, emphasizing the high quality of the shipment from the first glance.
• Quick closure (self-adhesive strip): allows you to close the envelope without adhesive tape, which speeds up the packaging process.
• Tear-off tape (tear strip): provides convenient opening, without the need to reach for scissors or a knife.
• Format 324×458 mm (C3): created for large sheets and formats exceeding A4, without the need for folding or bending.

📦 What can be shipped in a Lettpac C3 envelope?

• 📑 Documents, presentations, files: fit without bends and damages in a larger format.
• 📚 Books, journals, magazines: the stiff form of the envelope prevents bent corners and crushed covers.
• 💿 CD, DVD, Blu-ray discs, games: rigid construction protects boxes from cracking.
• 🖼️ Photos, graphics, posters: thanks to the flat construction of the envelope, they will not be rolled or destroyed.
• 🔌 Small electronics, accessories: chargers, cables, pendrives - securely closed in a rigid packaging.

💼 Who are solid cardboard envelopes for?

• 🛒 E-commerce: stores selling posters, calendars, larger books and accessories, who appreciate solid, eco-friendly packaging.
• 🏢 Offices, authorities, law firms: shipping larger documents or archival materials, where protection and aesthetics are important.
• 🎨 Creative agencies, publishers, print shops: shipments with graphic projects, print samples or advertising posters.
• 🏭 Technical and electronic industry: service documentation, instructions, technical maps.
• 🔧 Service companies: repaired accessories, diagrams, technical drawings sent without fear of bending.

⚖️ Cardboard envelopes vs bubble envelopes - when to choose each of them?

Both variants have advantages, and the decision depends on the type of product and priorities:

➡️ When is it worth choosing a solid cardboard envelope?

• No creases can be allowed: documents, graphics, diplomas, posters.
• Ecology matters: no foil, 100% paper packaging and recyclable.
• Professional look: brown cardboard emphasizes solidity and attention to detail.
• Flat products of regular shape: magazines, catalogs, CD/DVDs.

➡️ When will a bubble envelope be better?

• Sensitive to shocks: electronics, glass or small, delicate elements.
• Irregular shape: bubble wrap adapts better to the object.
• Very low unit cost: classic bubble envelopes are often cheaper.
• Ecology is secondary: foil makes recycling difficult.

Many companies use both solutions, depending on the needs and type of goods shipped.

🚀 Other sizes and personalization

Not every product - including Lettpac C3 (324×458 mm) - fits into standard packaging? Here are our interactive configurators that will allow you to create packaging tailored to your needs:

• Custom size boxes - adjust the size, type of cardboard and number of pieces - fully online, without leaving the office.
• Boxes with imprint - add a logo, graphic or advertising slogan. Our configurator will allow you to quickly order personalized packaging.

💬 Do you have questions or need an individual offer?

Planning a larger order, looking for non-standard dimensions or additional packaging solutions? Use the PRO form and describe your needs. Together we will prepare the perfect packaging for your business!

Lettpac C3 (324×458 mm) - bet on rigidity, ecology and professionalism when shipping your products!