Ash
Appearance

COLOR: Heartwood is mostly reddish brown; sap-wood is generally pale white.
GRAIN: Mostly closed, straight grain; fine, uniform texture. Coarser than European beech.
VARIATIONS WITHIN SPECIES AND GRADES: Only one species is native to the United States. Moderate to high color variation between boards.

Properties
HARDNESS (JANKA): 1300; 1% harder than Northern red oak.
DIMENSIONAL STABILITY: Below average (change coefficient .00431; 17% less stable than red oak).
DURABILITY: Elastic, hard; excellent shock resistance. Wears well and stays smooth when subjected to friction — popular for factory floors.