The One Source Cabinets slab and flat style cabinets are custom-made in either of our Arizona or Colorado cabinet shop locations. All flat panel cabinets are inspired by European design slab door that focus on maximizing clean lines and using simplicity to showcase the beauty of the door material. Even though it is a simple door style, the design does not have to be.Utilizing contrasting materials such as solid matte colors with textured wood grains, you can let your imagination run wild.