Specie – Hickory (Carya spp.); relative hardness – 1,820 (Janka); thickness – 3/4″; width – 6-3/8″; lengths – 24″, 48″ & 71″; finish – 10-layers Ultramax Aluminum Oxide, limited 35-year finish warranty; installation – tongue & groove nailed, stapled, glued down or floated; environmental – E1 CARB II qualified.