My 2 brothers and I all use firewood that we cut and split ourselves. We share a large wood splitter. Today we took down the biggest standing tree (a dead white oak) that we've ever done. It died just about one year ago and is 32" in diameter 3' above grade. I went to a website that figures the weight of logs, and the bottom 10' of the log is 3100 lbs, and that is figuring inside the bark diameter (it's still very wet wood). 8O