In the past when bucking up logs I just eyeballed it. I have always cursed myself afterwards for not taking the time to cut all my wood to a specific length. LAst year was my 1st season burning and the length differences in my wood caused me headaches....so much so that I employed an semi broken circular saw to cut the ends off of splits I deemed too long. Works well but messy and cutting the ends off of split firewood with a circular saw can be dangerous. This year I am not doing that...... I am cutting all my wood to 14 inch lengths and reasonable splits. I just scrounged a nice score of red oak and am splitting relatively small splits...about 1 to 1 1/2 times the size of a carton of smokes. I figure in the three years I'll give it to season, it'll be real nice to handle. What dimensions are you guys standing fast to as far as what you like your wood to look like.....if you like to eyeball it that is cool too. Any advice on split size?