Interior Space and Exhibition Design The Cube Nail Spa by Zoe Lee The Cube is a nail salon interior in Toronto. The concept comes from the Rubik cube, and the walls, floor and ceiling are covered in a continuous ceramic tile pattern. Pink tiles of 4 by 4 inches and 8 by 8 inches align from wall to floor and counter, so the grid flows without a break at each corner. Rectangular and cube shaped shelves are carved from the wall. Copper finishes and pastel colors create a warm and modern setting that differs from the usual glossy image of a nail salon.