A1 Size Corrugated Cardboard Pads.

Please note: the corrugations run the 297mm length. Available in 2mm, 3mm 4mm and 7mm thick Stock. White brown and black available (but not in all thicknesses).

Often used as stiffeners for shipping of photos, paperwork and textiles.

As the thickness of the stock increases so will the strength.

4mm thick stock often provides similar strength / rigidity  to solid board at a much lower cost.