- Build the platform.
- Choose the right location for your treehouse. The platform should be located in a spot that is level and free of large branches.
- Cut four 2x6s to the desired length of your platform. The length will depend on the size of your treehouse.
- Assemble the platform frame by attaching the 2x6s together with 2-inch deck screws.
- Place the platform frame in the tree and secure it with lag screws or treehouse brackets.
- Cut four 2x4s to the desired length of the joists. The joists will run perpendicular to the 2x6s.
- Attach the joists to the 2x6s with 2-inch deck screws.
- Cut the plywood to the desired size for the platform. The plywood should be at least 1/2 inch thick.
- Nail or screw the plywood to the joists.
- Sand the platform smooth.
- Paint or stain the platform to protect it from the elements.
- Build the walls and roof.
Walls- Cut the plywood to the desired size for your walls.
- Attach the plywood to the platform using screws or nails.
- If you want to add windows, cut them out of the plywood before attaching it to the platform.
- Sand the walls and paint or stain them to your desired color.
Roof
- Cut the roofing material to the desired size for your roof.
- Attach the roofing material to the frame of the roof using screws or nails.
- If you want to add gutters, attach them to the roof before adding the roofing material.
- Paint or stain the roof your desired color.
