Corrugated Flat Sheets and Layer Pads

A flat sheet cannot function as a standalone shipping box. It has no walls or closures. It must be used inside a master carton, strapped to a pallet, or manually wrapped and taped around a product.

If the sheet bridges a gap or shelf, the internal flutes should run across the shortest span to provide maximum stiffness. If the sheet is placed flat on a solid surface, the direction has less impact on performance.

Board thickness changes how the pad behaves under weight. Heavier products stacked on a pallet require thicker board to prevent the load from crushing the flutes and compromising the separation.

Suppliers can provide these as pre-cut flat sheets stacked on a pallet or as a continuous roll for manual cutting on the packing floor, depending on the material and order volume.

Generally, no. Standard rectangular sheets are cut directly on a slitter-scorer or corrugator. A cutting die is only introduced if the design requires rounded corners, specific notches, or non-rectangular shapes.

Flat sheets accept print easily through flexographic or digital methods. This is often used for branded base pads in retail displays or unboxing experiences.

The pad should be sized slightly smaller than the internal length and width of the master carton. This allows it to drop in easily without binding against the walls, while remaining tight enough to prevent shifting.

Single-face corrugated or thin E-flute board works well for manual wrapping. These profiles bend easily around irregular shapes without cracking, absorbing local impacts inside a parcel.