A4 Cardboard Pad | 3mm Recycled Brown | 297 x 210 (mm) | 100pce Pack | The Box Man

The A4 Cardboard Pad (PAD-A4-B3) is a pre-cut corrugated pad in 3mm recycled brown sized to standard A4 paper dimensions. Slides straight into A4 mailers, envelopes, and flat boxes as a rigid backing board — protecting documents, certificates, prints, books, and standard flat items from bending and creasing during transit. Buy A4 cardboard pads online in packs of 100 — Australian made with delivery Australia-wide.

Standard A4 Size, Ready to Use

No measuring, no cutting. Every pad in the pack is pre-cut to exact 297 x 210mm (A4) — consistent sizing with clean edges and square corners. Use as rigid inserts inside A4 mailers, protective layers between stacked items, or backing boards behind prints and photographs.

3mm Recycled Brown Corrugated Board

3mm thickness provides light rigidity — enough to prevent bending in standard mailers and envelopes. Available across multiple thicknesses to match your application.

At a Glance

• 297 x 210mm (A4) pre-cut — exact A4 dimensions, clean edges
• 3mm Recycled Brown — 3mm corrugated board
• Pack of 100 — bulk quantity for regular use
• Multi-purpose — mailer insert, backing board, layer separator, document protector
• Australian made — sustainably sourced paper, 100% recyclable
• Volume pricing — buy 4+ packs save 10%, 12+ packs save 15%, 20+ packs save 20%

Prices are GST inclusive.