My very first felled tree was about two or three inches wider than my 16 inch Sears saw (about 32cc) could reach across from both directions, so I'm guessing about 35 inches. It was a great big Water Oak that had been hit by lightning a couple years earlier. I was really scared, too. I knew the 'theory' from reading a lot on this website but doing it for real is much different from reading about it. My cuts were not pretty and it took a long time because I'd cut a few inches then step back to make sure the thing wasn't going to fall on my head. Suddenly, I began to hear a low cracking sound and that tree fell exactly where I wanted it to, which was the only clearing large enough to handle that big tree. I felt pretty proud of myself.