Get matched with top deck staining pros in Fort Thompson, SD

Pressure-treated wood lasts at least 10 years, but with the right care and treatment, it can last as long as 40 years. Painting the boards is one way to increase the lifespan of pressure-treated wood. The layer of paint provides extra protection for the wood against the exterior elements and insects.

Wood stains last anywhere from two to five years, depending on exposure to the elements, your local climate, the type of stain, and the surface it’s on. For instance, vertical surfaces last longer than horizontal surfaces. Some types of woods, like dense hardwoods, will require a recoat yearly, as they are too dense for the stain to absorb. In any event, apply a recoat every 2 to 4 years. As for storage, a can of unopened stain can last up to 5 years, though results may vary.

Yes, it is generally a very good idea to seal your deck after pressure washing. Power washing removes not only dirt and debris but also a thin layer of wood, leaving the surface exposed and more susceptible to weathering. Sealing is almost always needed after this process. After a general cleaning, sealing isn't automatically necessary if the existing sealant is still intact. You can test the surface by placing a few drops of water on it. If the water beads up, the sealant is working. If it soaks into the wood, it's time to apply a new sealant. If it has been a few years, it's wise to remove the old sealant, wash the deck, and reseal for maximum protection.

You’ll need to restrain your deck when you notice fading, cracking, peeling, or mold and mildew over a moderate to large area, or when it’s become especially difficult to clean. As for how often to stain a deck, plan to do it every two to three years or whenever you start to notice extended damage.