With Range("A8:Q" & Range("C8").End(xlDown).Row)
.borders(xlInsideVertical).LineStyle = 1
.borders(xlInsideVertical).Color = RGB(128, 128, 128)
.borders(xlEdgeLeft).Weight = 3
.borders(xlEdgeLeft).Color = RGB(128, 128, 128)
.borders(xlEdgeRight).Weight = 3
.borders(xlEdgeRight).Color = RGB(128, 128, 128)
End With