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310x230x105mm

Fast Turnaround & Proofing available on all Orders

A3 Mailing Boxes are cardboard cartons designed around A3 dimensions, giving enough room for A3 documents, catalogues or products plus protective padding. Each A3 size mailing box ships flat and assembles quickly, making it ideal for regular office, print shop and ecommerce use.

Original price was: $200.00.Current price is: $190.00.

(Inc GST)

Shipping Calculated at Checkout

Quantity Discount Price/Carton
1 — 30% Off$190.00$190.00 / Carton
4 — 65% Off$180.50$180.50 / Carton
7 — 97% Off$176.70$176.70 / Carton
10+10% Off$171.00$171.00 / Carton
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Recyclable A3 Mailing Boxes

For low‑profile items, an A3 flat mailing box keeps contents snug and prevents bending in transit. These A3 mailing boxes are made from recyclable cardboard and sized to work within Australia Post parcel guidelines for local and national deliveries.

Sustainability

Recyclable, Compostable, Biodegradable 

Type

Die -Cut Cardboard Boxes

Style

Roll End Front Tuck with Dust Flaps 

Customization Options

Custom sizes available, max. size is 1,000mm (H x W x L)

Base Material

Kraft , White , Black 

Material Stock Weight

Variable 

Material Stock Flute

E Flute /B Flute 

GSM

120 to 200  GSM

Recycled Fiber Content

40%

Certification

FSC-Certified

Color Printing  Options

Single Colour , CMYK

Ink Type

Soy Ink 

Print Process

Digital Printing

Print Options

Inside Only, Outside Only, Inside & Outside
White Ink on Kraft available 

Product SKU

ECO-DCCB1

A3 format for documents and prints

Internal dimensions are chosen so A3 sheets, posters and product boxes sit flat without being crushed or overly loose. This makes each A3 mailing box style perfect for shipping artwork, presentation packs and bulk A3 paper.

Compatible A3 Mailing Box With Every Size

Box sizes are aligned with mailing and parcel box brackets, similar to BX4/BXP4 A3‑style cartons. Our A3 mailing box compatible carton helps you stay within size and weight guidelines for Parcel Post and Express services.​

  • Packaging engineers design a box layout in CAD around the product dimensions and required features (locks, windows, inserts, display panels).​
  • A steel‑rule die is built to match this layout and mounted on a die‑cutting press.​
  • Printed or plain cardboard sheets are fed through the press, where the die cuts the outline and creases fold lines in one pass.​
  • Waste is stripped away, leaving flat die‑cut blanks that are shipped flat and later folded into finished boxes at packing.​
What are A3 Mailing Boxes used for?

They are A3 mailing boxes used to post A3 documents, prints, catalogues and products that need more protection than envelopes or tubes.​

An A3 flat mailing box is a shallow carton made to keep A3 items flat and supported, ideal for prints, photos and slim products.​

Most A3 size mailing box designs follow AusPost parcel size rules and are similar to official A3 mailing box formats like BX4/BXP4.​

Yes. They are made from corrugated cardboard that can be flattened and recycled through kerbside recycling streams.​

Typically A3 mailing boxes are larger than AusPost’s largest satchel and are sent as boxes rather than inside a satchel.​

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Australia Post Mailing Boxes

A3 Mailing Boxes for Secure Parcel Delivery

These A3 mailing boxes provide snug, flat-packing for A3 prints, catalogues or products, combining sturdy corrugated board, simple assembly and ample exterior space for shipping labels, branding and handling instructions.