Keep outdoor woodwork in top shape by staining or resealing it each spring. Staining wood has both aesthetic and functional benefits for any kind of wood in your home. There is no excuse for leaving wood unprotected. Wood stain forms a barrier over the surface of your wood that is waterproof. This causes water to flow away harmlessly without having the slightest effect on your wood. Check gates, fencing, decks, railings, pergolas, and other outdoor structures, and make repairs as needed