Abstract: An apparatus for loading lumber onto pallets so as to provide a stack of lumber layers separated by pallets for drying in a kiln, and for dismantle after drying includes a first elongated lumber-carrying conveyor, an elongated pallet-loading structure positioned in parallel with the first lumber-carrying conveyor, and an elongated stile-loading and unloading conveyor located between the first lumber-carrying conveyor and the elongated pallet-loading structure and positioned in parallel therewith. A frame structure over the first lumber carrying conveyor, the elongated stile-loading and unloading conveyor and the pallet-loading structure supports a lumber reciprocating drive element for moving aligned lumber between the lumber-carrying conveyor and the stile-loading and unloading conveyor, as well as a pallet reciprocating drive element for moving pallets between the pallet-loading structure and the stile-loading and unloading conveyor.