A pharmaceutical order filling system uses pucks disposed on a pallet to accommodate a plurality of container sizes into which pharmaceuticals can be dispensed. An order processing device receives a pharmaceutical order and identifies a size of container into which a pharmaceutical in the pharmaceutical order should be dispensed. A pallet sizing and pucking device is configured: to configure a pallet with a plurality of pucks adapted to accommodate containers and to configure the pucks on a pallet in a manner that will facilitate efficient fulfillment of the pharmaceutical order.