net ne odno i tozheunfinished hardwood - 100% natural wood, unstainedprefinished hardwood - 100% natural wood, stained and glossedengineered - thinlayer atop of different layers of composed materialsparquet - patterned h/w (usually planks made into small squares)laminat- composed materials, veneer with photographic identical plastic covering (veneer).can be h'w, cab be slate, etc