Our 305 x 305 mm single wall corrugated cardboard sheets are approximately 2.3mm in thickness and are a simple, cost effective addition to any packing facility. Cardboard sheets are ideal for high speed packing operations and are most commonly used as layer pads, interleaving between layers of products stacked on a pallet for additional stability. They can also be used to reinforce envelopes to keep sensitive documents flat when in the post and for folding and presentation of clothing and textiles.