Great story and even better project!
I took a different tack. I had a plumbing leak behind the kitchen cabinet which forced me to have to remove the shelf so I could cut into the back of the cabinet. When I put the cabinet back together, I shortened the shelf and added a vertical divider leaving about 6 inches of the cabinet available for storing baking sheets and pizza pans on edge.
We have way more baking sheets and muffin pans than we need, so it sometimes still gets out of hand.
I took a different tack. I had a plumbing leak behind the kitchen cabinet which forced me to have to remove the shelf so I could cut into the back of the cabinet. When I put the cabinet back together, I shortened the shelf and added a vertical divider leaving about 6 inches of the cabinet available for storing baking sheets and pizza pans on edge.
We have way more baking sheets and muffin pans than we need, so it sometimes still gets out of hand.