Tom, I'm sorry to take so long getting back to you. I knew it would take me a while to find some photographs of my ceiling level layout. I have one brick wall that I suspended the shelf from the joists with all-thread coupled to anchors. The other three walls are wall board, and I used inexpensive metal shelf brackets. Here are some photographs.
These are what I hung from the joists. You can see the couplings are almost at ceiling height. I drilled holes, then put a coupler on an an anchor until it bottomed out. Then I used a wrench to drive the anchor in the whole way. You can see I left some extra all thread so I could level the shelves. I never cut off the excess all thread.
