All wood decks should be stained to protect the wood from ultraviolet sun damage and moisture damage.  This will prevent your deck from weather damage including checking and cracking.  A well maintained wood deck can look good for many years.  Decks.com recommends that you use a high quality oil based stain every Spring or as necessary.  The oil in the stain will help preserve the wood and keep it from drying out.  Don’t confuse a topical sealer for stain.  Sealers only protect the wood from moisture.  They don’t protect the wood from checking and cracking when the wood dries out.

Many Decks.com readers ask us, when should I stain my deck? For the best results you should stain cedar, redwood, exotic hardwoods, and clear pressure treated decks soon as possible after the deck is built and every Spring afterwards.  However green treated pressure treated wood should be allowed to dry out for 30-90 days before applying the first stain. 

Always make sure the deck is clean and dry before you begin staining.  Wait at least 24 hours after washing your deck to apply stain.  Also try to avoid staining your deck right before it rains.  Most stains require at least 2-3 hours for drying. 

Always follow the instructions on the container for application.  Do your best to apply the stain evenly.  Rails will always require the most time and attention to detail.  Decks.com advises to stain the railings before the floor.  This allows you to clean up any drips on the floor surface afterwards.