Red Oak (Quercus rubra), relative hardness - 1290, thickness: - 3/4" (Solid) or 1/2" (Engineered), widths available - Solid: 3-1/4" & 4-1/4" (Micro-V), Engineered: 3-1/4" (Micro-V, Square Edge or Herringbone) & 5-3/16" (Micro-V), grade - Select & Better/Pacific/Exclusive, texture - Open Grain, finish - Titanium (Pure Genius optional), Semi-Gloss, 30-Year Residential Warranty. Installation - nailed, stapled, glued or floated (Engineered only).