Laying   Laying    
The laying of the cubes on the base layer is carried out by following the designed pattern (overlapping arcs, rows, circles, peacock tail, etc.) with a thickness greater than 5 to 15mm with respect to the thickness of the finished floor (to enable the compacting of the elements).
posa in opera

For further info please refer to:

manuale porfido
manuale posa

Two books are available at Consorzio Cavatori Produttori Porfido (Italian and English)