R.I. Gen. Laws § 2-20-16: Grading of hard pine, spruce, hemlock, and juniper.

In the survey of southern hard pine, spruce, hemlock and juniper boards, planks and sawed and hewed timber, there shall be two (2) sorts: (1) The first sort shall be denominated merchantable, and shall include all boards, planks, joists and timber that are sound and square-edged and well sawed; and (2) The second sort shall be denominated refuse and shall include all other descriptions, with allowance for rot.