📦 Brown flat postal box GBK03 (310x220x28 mm) - sturdy packaging for A4 documents and parcels!

Are you looking for a practical and aesthetic box for shipping A4 documents, catalogs or other medium-sized products? Meet the GBK03 box - a fashionable cardboard with dimensions of 310x220x28 mm, made of high-quality 3-layer corrugated cardboard (wave E). Thanks to the convenient FEFCO 427 design, you can quickly and comfortably fold it without using adhesive tape. Ideal for online stores and postal and parcel locker shipments. 📬✨

🌟 Why choose the GBK03 box?

• 🚀 Instant folding without tape: the practical FEFCO 427 design speeds up packaging.
• 💪 Solid 3-layer cardboard: wave E provides excellent product protection.
• ♻️ Eco-friendly solution: biodegradable and 100% recyclable.
• 📦 Practical storage: delivered flat - saves space.
• 🎁 Versatility: perfect for shipping documents, books, electronics, cosmetics and many other products.

📬 The perfect box for shipping - Poczta Polska, Deutsche Post and InPost Parcel Lockers

The GBK03 box (310x220x28 mm) fits perfectly with popular shipping methods:

• 📮 Polish Post - size B: the box fits within the size B limit (max. 325×230×60 mm, weight up to 2 kg).
• 🇩🇪 Deutsche Post - Maxibrief: the box meets the Maxibrief requirements (max. 353×250×50 mm, weight up to 1000 g).
• 📦 InPost Parcel Lockers - size A: it fits perfectly into size A (max. 640×380×80 mm).

With the GBK03 box, your shipments will be safe, fast, and always in line with carrier standards! 🚀✨

📌 Advantages of the FEFCO 427 design:

• ✅ Secure closure without tape: solid flaps provide stability and protect the contents.
• 🚀 Express assembly: quick and convenient package preparation.
• 🎁 Aesthetic appearance: professional cardboard enhances the brand's image.
• ♻️ Ecology and savings: the lack of tape reduces waste and lowers packaging costs.

📃 Grammage 360 g/m² - solidity with minimal weight

A cardboard with a weight of 360 g/m² provides optimal protection for shipped products, while maintaining a lightweight construction.

🔎 E-wave - lightness and durability

• Low wave height (approx. 1.5 mm): ensures an elegant appearance of the packaging.
• Resistance to crushing: protects the shipment during transport.
• Lightweight construction: savings on shipping and storage costs.

📦 Recommended fillers for the GBK03 box:

Secure your shipments and ensure their professional look with eco-friendly fillers:

• 🌿 Skropak - eco-friendly chips - biodegradable filler that effectively protects shipments.
• 📜 Packing paper - classic and reliable product protection.
• 🎀 Decorative SilkPaper tissue paper - an elegant addition, perfect for packing luxury products and gifts.
• 📖 Check out our blog - tips on how to pack efficiently and aesthetically.

🎨 Need custom-sized or printed boxes?

Stand out from the competition with personalized packaging:

• Custom-sized boxes - perfectly matched to your products.
• Boxes with a logo print - professional packaging increasing the recognition of your brand.

💬 Need a larger quantity or different products?

If you are interested in larger orders, different dimensions or products outside our standard offer, use the PRO form. We will prepare an individual offer especially for you!