First, I painted the wall a contrasting yellow. Than I got to work on the self.
Draw/ or any premade squares
dry wall screws/ wood screws (evaluate your needs)
bracket ( depending on wall) This wall had an off center beam so I secured it twice.
I see a clear work bench soon!
Step 1: Drawer
Step 2: Bracing and hanging
You will be placing brackets on back bottom of drawer or place pilot holes in bottom of drawer to attach piece directly to wall. All this depends on your wall and what will be on the shelf. Please ask a professional to be sure the shelf is sturdy. I have a photo of tools to help.