Abstract: A lumber cart for use in a dielectric drying kiln, in which the cart is comprised of a wheeled, horizontal frame, a flat bed of electrically conductive material, preferably aluminum, carried on top of the frame, and one or more electrical leads or terminals connected to the bed, is improved to facilitate loading and unloading of the lumber, by the bed being formed of at least one set of three rectangular sections in side-by-side relationship, the two outside sections of the set being capable of being elevated to a level above the center section, and the cart being provided with means underneath the bed for temporarily elevating the two outside sections and for holding those sections in the elevated position while supporting a stack of lumber by its ends when the stack is laid lengthwise across and above the center section. A similarly constructed separate electrode is also disclosed.