Colorado Tri Color 1.5″ & 3/4″ Tri Color is a very colorful decorative rock. It comes in two sizes, 1.5″ and 3/4″. DepthOne Ton Covers 1" deep240 sq. feet2" deep120 sq. feet 3" deep80 sq. feet4" deep60 sq. feet 5" deep50 sq. feet6" deep40 sq. feet 12" deep20 sq. feet