OMG! Watch your fingers!There's no hoisting when you get to 40", just rolling! Oak is roughly 62 lb/cu.ft. green, so a 40" round x 20" long (my cut length) weighs 900 lb, and a 50" round weighs 1400 lb. I can lift oak rounds up to roughly 44" diameter with my tractor, before the hydraulics stall out.