Stone,one of the oldest paving materials,offers a good , durable,wearing surface with a minimum maintentance requried.
Rubble & ashlar masaonry are the two forms of stone used for paving.
Rubble masonry is rough stone,as it comes from the quarry,but may be trimmed somewhat where necessary.
Ashlar masonry is hewed or cut stone from the quarry & is used much more often than rubble for the surfacing of walls.
Figures illustrate various stone pavements.
