Have more than 20 cans buy more and stack them My wife loves these. Yes they are stackable.
FEATURES

Organize your canned goods with ease using the Shelf Reliance Cansolidator. This unit can hold up to 20 cans and features a rotation and adjustable system for effortless access to your stored goods. Made in the United States, this unit is perfect for both commercial and home kitchens. The Shelf Reliance Cansolidator is the ideal addition to any storage and handling equipment, ensuring that your canned goods are always easy to find and within reach.