Kerbstones are blocks, that are used for dividing a pavement or sidewalk from the road, or as massive steps.
Thanks to the hardness and high resistance to impact and abrasion of porphyry, this stone is suitable in places particularly exposed to impact from vehicles, trucks or snowplough blades.
Sawn and flamed kerbstones have fixed measure and view edge with chamfer, the length is free, from 50 to 120cm.