24 Nov 2017 Steps 12 per square foot for 1 inch thick 15 for 2 inch 25 per square foot for stair material 3 Blue Granite 1 8 quot birds eye 1 quot minus City Spec road base blue 1 2 quot minus crusher chips 1 2 quot to 1 quot clear 1 quot to 2 quot clear 2 quot to 6 quot rocks 8 quot 20 quot rocks hand size 20 quot 60 quot Feature rocks sold by the piece 100 yd ³