Building A Tree House
Choose the Right Trees
Find a mature and healthy tree, that is structurally sound. The tree needs to be a hardwood, such as maple, oak, hemlock, or beech. Make sure that the tree has been pruned of dead leaders, branches and any falling hazards.
If you are unsure of a tree’s health (infestation and disease are not always immediately noticeable), or structural strength, you may want to consult an arborist in your area.
Build Low to the Ground
Obviously, most injuries result from falling out of the tree house. For this reason, a tree house that is more than 10 feet off the ground is probably too high.