We take the charm of Cedar Nickel Gap tongue and groove siding and then factory machine finish each board in this beautiful Seacoast Gray semi-transparent stain. This stain gives the wood a light gray tone allowing the natural wood grain to still show through. When the stain is machine applied to all six sides, it protects the wood against moisture and harmful UV rays. The oil in the stain penetrates the wood and the finished product has a water repellent finish.