Ashlar stone is the description of a very smooth, clean cut sandstone that is used as walling as well as other features.
It is used for complete buildings and/or as a characteristic wall to give an elegant modern clean look.
Ashlar walling is used on many grand historical and influential buildings.
It can be cut as either full bed walling or as cladding. Face size again can be made to any size for either a course or random look.