I got a lot of old wood from an old deck we tore down a year or so ago. I've pulled all the nails out, thrown away the *bendy* pieces --- the wood looks awful (very weather beaten) but, to my eyes, looks usable. I'd like to refurbish it and use it for the beginning stages of my soon-to-be gigantic deck out back. My questions are: Do you all think it's wise to use old wood in a new deck? How can you determine if old wood is okay for this sort of thing? And if you think the wood would be okay to use, what should I do to clean it up? Mind you, I have a ton of other projects which need wood (raised beds, cold frames, etc.) so it won't go to waste. But it's plank size for decks and, if possible, I'd like to use it for the back deck.