We bought this unit. We want to add more shelves. Where to buy?

Hello, Unfortunately, this system does not offer additional shelving. If you really want more shelves for the unit, you can just purchase a laminate board and customize it. However, this will automatically void the warranty and ClosetMaid will not be liable for any damage to the unit. We also do not recommend adding more shelves because it will impose more weight to your unit thus compromising the quality of the product. Thank you for your inquiry.