If I could have anything I want to store my fabric, I'd have cabinets like yours and I would stack some of them floor to ceiling. I wouldn't want a 24" deep cabinet of any kind because too much would get shoved to the back and never seen again. I used to design kitchens for one of the big home improvement stores and learned how to "work" cabinets. I'd build a toe kick base for a wall cabinet to sit on, then stack more wall cabinets in the configuration that would fit in my room. You can buy veneer panels to put on the sides that will make them look like one cabinet.