When spring decides to show its warm unsnowy head I am planning on building a tree house as a small hobby workshop/ personal storage area. Yes I know I'm an adult wanting to build a treehouse. I've always wanted one and It will not only be useful but also tap into that child in me.
What I would like some help on is; what kind of lumber I should use. The tree is cottonwood and seems to not want to go anywhere so I'm assuming its strong. My goal is to make it like a very small apartment that can support 3 people and maybe 200lbs of tools or other things. The tree is 11 feet around so if i did it right the diameter is 3.5 feet. I plan on making it wrap around the tree ~9 feet around
Height:~7feet Also 7 feet from the ground
~6 feet from the tree side of the inside to the outside of the inside
I cant think about how to explain it any better so questions on specifics could help. Thanks everyone.