I found an old slab of Red Oak (I think) in an old Grain shed. It was cut a long time ago. It looks to be in pretty good shape. There is a non solid knot on one side that has some worm holes around and a few small cracks here and there. Not sure what to do with the knot. I have been sending through a 13” thickness planer since it was twisted a little and has a little bow. Still needs a lot of work. Its about 48 X 12 X 2 inches thick as shown. First any advice on shaving down to get rid of the warp. It would make a nice bench top, but not real interested in making at this time. I was thinking about cutting in half & gluing together to make a 20” X 20” end table top. One side was cut straight. I am very new to wood working, but have always loved the beauty of wood and especially like furniture made from slabs. Any advice would be very much appreciated.