The Treehouse Build Continues

 

One of the side-railings going up. The uprights are wide but will ultimately be covered in a galvanized metal skin.

 

The platform is about 10 feet off the ground so I constructed the railings to conform to current residential building codes, 36" high and 4" in between balusters.  

 The first side of the platform being skinned. The skin is lag-bolted against the top and bottom rails and along each upright. It need to be strong enough to stay in place if kids fall against it from the inside.