Your first stop for professional grade treehouse kits, treehouse plans, treehouse attachment bolts, backyard zip lines & more. We supply professional contractors & DIY'ers with the tree house hardware & accessories they need! We sell custom made plans & supplies made by us and provide unbeatable customer support. With Treehouse Supplie's tree house building experts on your team, you can get your treehouse built the right way without making costly mistakes and damaging your trees in the process. See what our customers have to say and pictures of their DIY Tree Houses!