I used to stay two years ahead of the game when my sis and family still owned all the farm and I had access to mega wood. These last few years I have been buying big blocks from the Stella Jones plant in Rockland. Mostly oak and maple butt ends from the finished ties, clean wood before they creosote bath. Stuff runs $30 bucks a ton, a bargain if one has had to buy oak around here at $125 a face cord. I traded out some concrete work for some farmers and they haul me the blocks in their dump trucks. This year the timing did not work out as they were always haying and then picking beans. I supplement the blocks with whatever comes my way locally.