When she thought it was time to start building, my wife brought the Black & Decker The Complete Guide: Build Your Kids a Treehouse home from the library. I went through it with a slight skepticism. I can’t say I’d trust a Black & Decker branded book to be all that good at any topic. While I feel my initial skepticism stands regarding the book’s production values, I was pleasantly surprised by the book’s technical information, especially its section on attaching to the trees.
I knew that when attaching to the trees it would be important to properly support the tree house, not kill the tree and allow tree house and tree to move independent of each other. The Platform Ancoring Techniques section was fantastic. It reviewed the entire anchoring process. After reviewing the section multiple times, I thought the solution would be the commercially available Garnier Limb anchors they mention. Unfortunately, when the anchor and associated bracket are priced out, it comes to $125.00 per attachment point (plus the special drill bit you need to rent or buy). This was more than we were willing to spend, so I set about building my own.
|The Garnier Limb from treehouses.com|
|The 3/4" x 10" galvanized bolt.|
|The washers and 3/4" galvanized pipe ferrule installed to form my|
homemade mounting bolt.
|I'm using commercially available post straps from Home Depot as the|
bracket that will attach the joist to the mounting bolt while allowing
|Gluing the joists.|
|This drill is one of my absolute favorite tools.|
|That's as far in as I could get, using a 9/16" pilot hole.|
|Finally, a rock solid anchor bolt.|