Wall Shelves are 5" wide open shelves with a depth of 11-1/2".  Top and bottom cabinet panels have square corners while interior shelves have rounded corners.  30" tall and 36" tall shelf units have 2 rounded corner fixed shelves; 42" tall unit has 3 rounded corner fixed shelves.  (Reversible for left or right installation)
Wall Cube Cabinets are 6" wide x 12" deep and can be installed horizontally or vertically.  30" unit has 5 cubes, 36" unit has 6 cubes, and 42" unit has 7 cubes.
Shelf/Cabinet interiors are finished to match.