the two supports would be regular posts set in concrete like normal, with the 3-5 posts i mentioned on the side of the drive on those dek blocks. the deck comes flush to the house, but not attatched to it as best i can tell.
in a way it might be attatching it to the house, or to the detatched garage actually. what i'm wanting to do is... there's a loft over the garage with a deck around part of it, that kind of overhangs the regular lower deck. i'd like to widen the lower deck up flush with the garage so i have more overhang bettween the two decks. i hope to make it easier to work out either spiral or strait stairs bettween them. so i guess if i can do this the stairway would become an attachment.