A3 Book Mailer | Kraft Brown 3mm | 423L x 300W x 15H (mm) | The Box Man

The A3 Kraft Brown Book Mailer (BM-A3-15) is a cardboard book shipping box sized to fit standard A3 books, documents, and flat items. 3mm kraft brown corrugated board with sacrificial crush zones on both ends — built to absorb the bumps and drops of Australia Post, StarTrack, and courier networks before they reach your contents. Buy a3 book mailer boxes online — Australian made with delivery Australia-wide.

Crush Zone Protection for Book Corners

The ends of each mailer extend beyond the contents, creating a built-in buffer zone. When a courier drops or stacks your parcel, the crush zone takes the impact — not your book’s spine or corners. Fewer damaged books, fewer returns, fewer unhappy customers.

15mm Fixed Height — Clean, Snug Fit

The 15mm internal height fits a single standard book, catalogue, or document with minimal void space. A tight fit means less movement in transit and a professional presentation on arrival. For thicker books or variable product heights, consider our adjustable-height version with crease lines at 10mm, 20mm, 30mm, and 40mm.

At a Glance

• 423 x 300mm A3 footprint — fits standard A3 books and documents
• 15mm internal height — snug fit for single books and flat items
• Sacrificial crush zones — absorbs impact before it reaches your contents
• 3mm Kraft Brown corrugated board — rigid protection, lightweight postage
• Australian made — sustainably sourced paper, 100% recyclable

Prices are GST inclusive.