Amazon has the Amazon Basics 5-Shelf Adjustable Heavy Duty Storage Shelving Unit with Wheels (Chrome) for $60 with free shipping. Has 4" wheels, 1500 lbs weight capacity (w/ leveling feet), and measures 30" L x 14" W x 64.75" H.

Also available without wheels for $53 - 5% off with Subscribe & Save = $50 with free shipping.