Pallet vs. Skid:
The main difference between a pallet and a skid is that a pallet with both a top and a bottom deck, consisting of three or four stringers that connect several deck boards. This allows for better maneuverability and structural integrity.
The original (older) design was a skid, consisting of only the top deck. They are somewhat less maneuverable via forklift, and slightly less sturdy than pallets, although they make an excellent choice of packaging for longer-term storage of goods.