Wrong, it's walnut, although it can depend on your location in the states... I should know because I live on a small walnut tree farm, roughly 40 acres in Ohio... Here's the latest report for ya: http://ohiowood.osu.edu/images/July_31_2014_Final.pdf
Also, measurements are in board ft. not weight, but I believe you're just being silly so I'm all done with this nonsense...