Pull-out pantry solution
Our new-to-us Aria has two pull-out pantries. The problem was the space beside the pull-outs when it was in the cabinet. Boxes would shift or fall over, blocking the pantry from pulling out. While replacing/upgrading the drawer glides, I installed spacers in the cabinet beside the pull-out and covered them with 1/8 hardboard. Be sure to add a spacer in the middle because the hardboard is pretty flexible. The hardboard is now flush with the opening of the cabinet and anything that shifts/falls slides along the hardboard still pulls out easily.
(Note: You have to click on each photo so it will rotate for correct viewing.)