Amazon.com: Finnhomy 6-Tier Wire Shelving Unit Adjustable Steel Wire Rack Shelving 6 Shelves Steel Storage Rack or Two 3 Tier Shelving Units with PE mat and Stable Leveling Feet, NSF Certified, Chrome :
ClosetMaid Large and Small Closet Pole End Caps for Wire Shelving (14-Pack) 71016 - The Home Depot
Style Selections Steel 4-Tier Utility Shelving Unit (35.7-in W x 14-in D x 53-in H) in the Freestanding Shelving Units department at Lowes.com
Expandable Closet Shelf | The Container Store
Used Wire Shelving for Sale by American Surplus Inc.
Post Top Cap | Retail Shelving Systems | By Grand + Benedicts Store Fixtures