For Stackable Storage: Amazon Basics 6 Cube Grid Wire Storage Shelves, Black The Amazon Basics 6 Cube Grid Wire Storage Shelves, Black ($30, originally $34) includes 26 plastic corner connectors and 23 grid panels made of powder-coated steel wire so you can stack and design however you want. It has a 10-pound weight capacity per cube and comes in white as well. Image Source: amazon.com Amazon Basics 6 Cube Grid Wire Storage Shelves, Black $30 from amazon.com Buy Now