Abstract: A deck plank cover made from a plastic material, such as a wood composite, wherein the deck plank cover is designed to be affixed to the top surface of a preexisting deck plank. The deck plank cover is useful for repairing or protecting mildly deteriorated or deteriorating wooden deck planks of typical wooden decks. The deck plank cover may be affixed directly to the top surface of the existing wooden deck planks, and serves to substantially protect the wooden deck planks from further exposure to the elements. The deck plank cover of the present invention may also be applied to non-deteriorated wooden deck planks to prevent the onset of deterioration and to alleviate the need for treatment of the subjacent wooden deck planks with chemical preservatives. The deck plank cover preferably simulates the look of real wood, and may be produced in various cross-sectional shapes and sizes and from a variety of plastic materials.