How much material am I removing every time I hone a stone floor?

This will depend on what grit you are using. Recent studies performed by several abrasive companies have shown that honing of marble removes the following amount of material:

Grit size Average amount removed(inches)

120 .0019 400 .0008 800 .0001 1800 .0003 As you can see the amount removed is very small and a stone floor can be honed numerous times without the chance of removing a significant amount of material.