Amazon has the AmazonBasics 4-Shelf Shelving Unit – Black in $32.39 with free shipping.
Product Features:
- Each shelf holds up to 350 pounds with leveling feet, 110 pounds with wheels, or 88 pounds with wheels.
- Wire shelves adjustable in 1-inch increments.
- No tools required.
- Steel construction with black-coated finish.
- 3 inch industrial rubber casters for easy moving.