The rectangular bracket below with holes in it is what I'll be making. And the piece above it is now ready for holes and a 1/4-20 thread.
 

I started installing the brackets on the left side first. Then I used my story stick and laid out the right side. This process is easy but you need to take your time to make sure everything comes out level. As you can see, I only have two rods threaded on my brackets. However, I need six in total so it's time to make some rods now.
 

The original rods that came with the kit were slightly under 7/16", which makes sense because that will allow them to install easier. What you see below is me taking a cut on my rods to make them match the store bought ones. The amount I'm removing is only .020" so this is no big deal.
 

After a few minutes on the lathe, all my rods are finished. The outer two pieces are the original ones, (which I'm showing you the front and back of) and are hexagon shaped. The ones I made are not hex shaped but they don't need to be. The company that made the original ones used hex material to save time and money because if you measure across the higher spots on them, they are slightly under 7/16" which makes them the perfect size when you drill your hole with a 7/16" drill. Oh, I also gave mine a nice chamfer on the leading end to make them easier to install.
 

Here is what the floating shelves look like when you install the shelf on the hardware. If you measured correctly, did your layout spot on and drilled all your holes in the right places, this is how things should go together. Now it's time to do some sanding.
 

With all the hardware installed, it's time to sand my shelves. I used some 80 grit and then some 150 to end with. I gave all the edges a nice soft edge using my sanding block.