I have a bunch of great left over metal shelving and accessories for sale. The are like new and have zero rust. You could make a shelving unit from these parts or add additional shelves to your existing unit. It fits the standard 1 inch diameter metal shelving posts found at hardware stores like Lowes or Home Depot. Just need gone and taking up space.
See quantity and dimensions below:
-7 shelves: 36” wide, 18” deep
-4 posts, 35.5” long
-2 posts, 63” long
-2 posts, 21.5” long
-4 post extensions screws (see picture)