Knape & Vogt SR18-1-W Door-Mounted Spice Rack Cabinet Organizer, 20-Inch by 13.81-Inch by 3.94-Inch Mounts to back of door to utilize unused space Bottom tier is 3.94 -Inches deep to accommodate larger items, while upper tiers are 3 - Inches deep. Mounts easily with 4 screws Powder-coat frosted nickel finish