Check out Deek’s Book on Shelter and Cabin Concepts HERE… http://www.amazon.com/Humble-Simple-C… In this episode. Derek “Deek” Diedricksen, from the HGTV/DIY Network and Relaxshacks.com shows you how to make a VERY simple, and affordable, self-closing door for a tree house, shed, clubhouse or playhouse, or even a cabin.