Norway spruce, a wood species extensively tested at the Advanced Structures and Composites Center at the University of Maine, has been approved for use as construction-grade dimensional lumber. Based on the testing at UMaine, on Oct. 20, 2016, the American Lumber Standards Committee (ALSC) approved the inclusion of Norway spruce in the Spruce-Pine-Fir South grouping read more Norway spruce tested at UMaine OK’d for construction-grade lumber