We can suggest different products for cladding and landscaping in residential applications.
Porphyry stone products for walls are not structural. They indeed constitute a beautiful facade for concrete artifacts.
The products available, range from split river-rocks to thin veneer ashlars. To complete the aesthetic effect, landscaping walls are usually topped with split edge coping stones. As a result, the thickness varies according to the type used.
We suggest to install these products with mortar.
On the other hand, it is common to use porphyry products just also as lansdcaping borders, or as stepping stones in gardens.
Again, each use is unique and thickness and installation system varies accordingly. Cladding and landscaping is a very broad spectrum.