Garage Shelves - Freestanding (Modified)

First project ever! I have been planning to build this for at least a year, and I finally did it! I had to modify the plan to fit my space, but it worked out well. They cut the wood for me at the store, so I did not make any cuts myself, just assembled all of the pieces together. I used all 2x4s, 8' and 10', cut down to my measurements. I did not finish the shelves since it is just for the garage, but I did sand rough board edges and some of the faces. I just used an palm sander and coarse sandpaper (80 grit). Please double check all measurements and lists because I forgot to add my shorter shelf supports to the list and had to go back to the store. I also forgot to add the width of the top shelf to those two shorter supports, so the shelf boards are resting on the top instead of nestled into the supports. It turned out not to be a functional problem, but a good lesson to learn. I also learned to make sure my driver battery is charged fully before starting - that took a large chunk out of my first day building and I had to finish the next day. My husband helped with some lifting and holding, but I mostly did this on my own in one weekend, so you CAN do it! Don't wait like I did - it is soooooooo useful and it looks great! All of my friends are really impressed and it feels so good to have made something like this! Thank you Ana!!