Well, this model is made for light to moderate works. You can cut small trees or cut the branches of large trees. While you can cut a large tree with the Husqvarna 440, you need a lot of practice. Still, the power is insufficient, and the task will take up quite some time. It's better to use a more powerful saw for cutting bigger trees. You should look into the chainsaws suitable for cutting firewood if you want to work with large trees.