350x250x20 Flat box opened from the side FlatBox F03

📦 Brown Flatbox F03 Postal Box (350x250x20 mm) - reliable packaging for A4 documents and more!

Are you looking for a practical and durable box in which you can easily send A4 documents, catalogs, or magazines? Meet Flatbox F03 - a stylish cardboard box with dimensions of 350x250x20 mm, made of high-quality 3-layer corrugated cardboard (E wave). Thanks to the adhesive strip and tear strip, you can prepare the package in a few seconds, and opening the shipment will be exceptionally convenient for the recipient. The perfect choice for e-commerce, postal shipments, and InPost parcel lockers. 📬✨

🌟 Why should you choose the Flatbox F03 box?

• 🚀 Quick packing: the integrated adhesive strip means you can secure the contents without the need for additional tape.
• 💪 Solid protection: 3-layer E-wave cardboard guarantees the safety of documents and products.
• ♻️ Environmentally friendly: fully biodegradable and recyclable cardboard is a responsible solution.
• 📦 Easy storage: we deliver boxes flat, saving valuable warehouse space.
• 🎁 Wide application: perfect for sending printed materials, books, A4 documents, brochures, or small electronics.

📬 The perfect box for shipping - Poczta Polska, Deutsche Post, PostNL, and InPost parcel lockers

The Flatbox F03 (350x250x20 mm) was designed with the standards of well-known carriers in mind:

• 📮 Polish Post – dimension B: dimensions 350×250 mm exceed the limit of dimension A, but fit perfectly into dimension B.
• 🇩🇪 Deutsche Post – Großbrief: limit 353×250×20 mm (weight up to 500 g) – F03 fits within these dimensions, leaving 3 mm of spare length.
• 🇳🇱 PostNL – brievenbuspakje: max. 380×265×32 mm – the Flatbox F03 fits within these boundaries, so you can send it as a letter via the Dutch post.
• 📦 InPost Parcel Lockers – dimension A: limit 640×380×80 mm – the F03 box will easily fit in it.

With the Flatbox F03, your shipments will arrive safely and elegantly packaged! 🚀✨

📌 Design with adhesive tape and tear-off strip – convenience and security

• ✅ Effective closure: the adhesive strip prevents accidental opening during transport.
• 🚀 Instant opening: the tear-off strip allows the recipient to easily unpack – without scissors or a knife.
• 🎁 Aesthetic appearance: the uniform surface of the cardboard enhances the image of your brand.
• ♻️ Less waste: the lack of need to use additional tape positively affects the environment.

📃 Grammage 500 g/m² – optimal protection

The 500 g/m² paperboard ensures appropriate stiffness, preventing creases and damage to the contents - all while keeping the shipping weight as low as possible.

🔎 E Wave - lightness and durability

• Small wave height (approx. 1.5 mm): gives the box a sleek appearance and facilitates storage.
• High resistance to crushing: effectively protects the shipment during transport.
• Lightweight construction: translates into lower logistics costs and less material consumption.

📦 Recommended fillers for the Flatbox F03 box:

Ensure additional protection and attractive "unboxing" with eco-friendly fillers:

• 🌿 Skropak - ecological crisps - biodegradable, perfect for protecting delicate items.
• 📜 Packing paper - classic and economical filler providing product safety.
• 🎀 Decorative tissue SilkPaper - elegant package finish, great for premium products and gifts.
• 📖 Check out our blog - you'll find inspiration and professional packing tips there.

🎨 Need custom or printed boxes?

At Boxmarket.eu we will match the packaging to your needs:

• Custom boxes - order boxes in dimensions perfectly matched to your assortment.
• Boxes with logo print - reinforce visual identification and underline the professionalism of your brand.

💬 Need a larger quantity or other products?

If you are looking for larger orders, non-standard sizes or products outside the standard offer, fill out the PRO form. We will prepare a special offer for you at the best price!