Corrugated pads and sheets are flat pieces of corrugated layering to place between products or separate items in a palletized stack. They are also used to protect the floor beneath a pallet.
Sheets are also widely used within the printing and mounting industry where labels or direct print are applied to the sheets for promotional advertisements.
Rollups are simply pads that are scored to allow the pad to roll up into a shape- typically an open-ended rectangle or square. Rollups are typically used as blocking and bracing mechanisms inside of a corrugated box to secure product from shifting.