Quote: I'd have used deck blocks, but couldn't find any to take 6x6's w/o necking them down. x's would probably have been sufficient, but with the weight of the building and the equipment I'll have in it, I was more comfortable with 6x6's. Besides, code calls for 6x6's for decks here (not that I had it inspected) and a 10'x16' building is a lot heavier than any deck.