I think it's been asked before, but I think it bears asking again. I would like to buy a woodlot of my own to pull firewood off . . . and maybe build a house some day. Obviously there are a lot of factors in determining how large a lot a home owner would need to have a sustainable harvest (amount of wood used, hardwood vs. softwood, woods vs. fields/open area, tree density, etc.) but in general how large a lot would you folks suspect would be necessary . . . assuming most 5-6 cords a year, mix of hardwood/softwood, more woods vs. fields?