Porphyry setts (also known as sanpietrini or cubes) are produced by mechanical splitting of quarry face slabs; according to the thickness of the slabs used, the setts have differing characteristics.Uses of porphyry setts Porphyry setts can be laid in various patterns, such as opposing arcs, concentric circles, peacock tails, or in straight lines.Setts have ideal application when used to pave:Courtyards, garden lanes, paths for houses and villas;Squares, streets (including for heavy traffic), pedestrian areas, town and village centres.