Since not all wood types are the same, the maintenance of outdoor decking is not the same either. And then it depends on how much the deck is exposed to grease, moisture, sun, and traffic. It will also make a difference if your deck is stained and then again which finishes are used. For example, solid ones will make maintenance more difficult. As an overall, softwoods and cheap decks will require more maintenance and regularly while hardwoods will hardly require any sort of repairs.