The loading and securing of a number of sacks, bags, boxes or drums on a pallet base. See also pallet. Palletizing is the process of stacking large quantities of identical items onto a pallet for shipping. Items are stacked according to weight and in a pattern that promotes stability and product integrity, a flat wooden structure onto which heavy goods are put so that they can be moved using a fork-lift truck (= small vehicle with two strong metal bars on the front that can lift heavy goods): The website helps corporations sell pallets of unneeded merchandise, verb (used with object), pal·let·ized, pal·let·iz·ing. to place (materials) upon pallets for handling or moving. to perform (a materials-handling operation) with the aid of pallets. to equip with pallets or with the ability to handle pallets: to palletize a truck.