Amazon.com: HSD Kallax Decorative Open Back 4-Cube Storage Organizer, Shelving Unit White, Square Shelving Unit Large Storage Solution, 4 Cube Storage Shelf Organizer Bookshelf, 30 3/8" x 30 3/8" x 15 3/8" :
Ikea KALLAX Insert with 4 Shelves, White 13" x 13" 404.237.19 - NEW | eBay
KALLAX shelving unit with underframe, white/white, 577/8x645/8" - IKEA
KALLAX shelf unit with doors, white, 303/8x303/8" - IKEA
Stacked a kallax 2x4 & 3x4 on top of a 5x5. But now I'm having doubts. It's mounted to the (very old) brick wall, as shown in the picture. Do you think