Playing with different ideas of reuse with my last drawing throw open the doors. Using doors in substitute for solid walls makes perfect since being a tree house. Being of an inquiring mind I wanted to create a tree house using doors as the platform. Think just how interesting to be able to stand on a glass section of the floor and see what's going on below. All the while surrounded by all the different old doors of different weights and dimensions that have come together to create a whole. Understandably not very practical for a tree house since the glass sections would have to be reinforced and/or very thick glass to hold anyone but all the same.
So if you will lets turn the world a little and walk on the doors and glass windows as shelter.
Details: ballpoint ink pen on paper