You could store your wire on this but honestly if you've got that much wire maybe you should consider where your life is going
There's nothing wrong with a little wire, such as the amount of wire in this wire shelf. That's wire used for positive reasons. But if you've got so much wire you need to buy shelves just to hold the wire, that's too much wire! Please, think about what you'll be putting on your shelves. If it's something else, that's okay, but if you need wire to hold your wire... maybe you've got a problem.