Abstract: A structural covering that is attachable to a rail of a railing that has a top, a pair of sides, ends, and a bottom, and that is attachable to a floor board of a deck that has a top, a pair of sides, ends, and a bottom, while covering most of the rail of the railing and any exposed ends thereof and covering most of the floor board of the deck and any exposed ends thereof so as to prevent splinters, hide knots, splintered wood, discolored wood, and cracks in the wood, and give a uniform look that will not rot. The structural covering includes a general covering component, a connecting component, an end cap component, and a corner component. The general covering component covers most of the floor board of the deck and covers most of the rail of the railing. The connecting component joins facing ends of the general covering components that are adjacent and collinearlly-aligned.