The trees in this game is kinda normal, but since it's based at a very ancient time...
What about the possibility of certain species of trees being able to grow 2 to 3 times their size, and allow you to produce more logs, at a slight cost of quality (older trees makes em weaker a bit)?
In another thread, I posted the idea of being able to hollow out a giant tree to make a home. The interesting factor is that you can't choose where to build such a thing since it's grown, but it also doesn't decay.
The giant tree when made into a home should be smaller than a timber house, roughly 3x3, and the floor is made of dirt, meaning you can lay stones on it and can't build cupboards on it. Since this tree isn't technically a house, and isn't technically outside, the decay rate is slowed but not halted.
You can't make cellars in Tree homes since there's only dirt under it, and you won't gain much from it.
The only incident I would think players would complain, is that griefers can chop down your house! But you can't get logs out of it since it's hollowed to some extent.