American size
size		thick	thick	U
48×24		1/2	3/8	inch
24×24		1/2	3/8	inch
24×12		1/2	3/8	inch
12×12		1/2	3/8	inch
32×16		1/2	3/8	inch
16×16		1/2	3/8	inch
slasb		3/4	1.25	inch
European size
size		thick	thick	U
60×60		2	3	cm
30×60		2	3	cm
40×40		2	3	cm
50×50		2	3	cm
40×60		2	3	cm
slabs		2	3	cm

 

surface finishing types

• polished
• honed
• brushed
• tumbled
• hammered