To revisit this idea:
I just had a huge 5 trunk red oak tree cut down. My plan is to keep a 7ft tall section of the trunks as a base to build a tree house on top of. The base of the trunk is about 6-7 feet in diameter.
I’m sure the trunk will eventually rot, but I’m thinking a huge solid 100 year old tree trunk will take 10-20 years to rot enough to become unstable holding a fairly small light treehouse structure. Any thoughts on safety and how long this could last? I only need it for at most 10 years for my child to use it.
