The hanging bar is fixed, and its height is less than the length of the shelf poles. The wooden closet shelf above it is also fixed. The metal shelves are longer than the width of the closet opening, and they are for practical purposes as wide as the closet is deep. The shelving itself is standard metro knockoff. How did I do that?
1) If I had had some bungee cords handy, I could have installed the shelves without seriously bruising my back and shoulder.
2) There is another question about the closet dimensions that should give the show away.