Great layering protection! Layer Pads are sized to fit the most commonly used boxes and can be placed between layers of product for protection or used as stiffeners for envelopes. Corrugated Sheets work great for separating layers on pallets to disperse weight and help protect against strapping and forklift damage. Single Wall Sheets and Pads are made from 200#/ECT-32 kraft corrugated. Double Wall Sheets are made from 275# D.W./ECT-48 kraft corrugated.