GENIUS USE OF EVERY CONCEIVABLE INCH by going vertical for this can rotation system. Could be customized to fit the narrow(er) parts of that awkward hallway where a whole shelf unit wouldn't fit in. Just 4 cans width (maybe right under 30"?) would suffice for the staple canned goods: green beans, corn, soups, (OH! and I could stock 100 cans of green chillies and that wouldn't be enough!) yah yah YAH!