Treehouses in high wind areas should be in the lower third of the tree, where wind speeds are lower and the leverage of the force on the tree is reduced. If the wind poses a serious danger, keep size to a minimum and try to build a more curving, or circular, house to reduce the sail effect. The points where you fix supports will need to be strong enough to hold the weight of the part of the house they are supporting. It is simpler building with a few long supports than lots of smaller ones. Although branch strength varies between species of trees, these are some guidelines.
Excellent trees are oak, beech, maple, fir and hemlock.
If your branches don't allow for this, use more attachment points so the weight is spread out better. Building between different trees or trunks If you are planning to use two or more branches, trunks or trees, you must be careful when fitting supports. When there is strong wind, a tree will twist and sway quite a lot. You must not seriously restrict this movement because it could destroy your house. This mostly occurs when building across two very long branches because they catch the wind easily and can swing around a lot.