Rip out the old crap in the attic (junk from previous owner), wooden shelves, old storage cabinets….
Worst part of this project was that I couldn’t empty the garage to make it easier to work in. I had to constantly move things around depending where I was working. Shift everything to the right, work on the left side. Shift everything to the front, work in the back.
Here it is at the point of maximum mess!