Throw away those boring old plans for a box treehouse. This treehouse has rounded walls and hangs from a tree. A transparent roof lets in natural sunlight, and with enough room to lie down and get comfortable inside, parents might find themselves relaxing in this treehouse.
Use a piece of scrap tubing to make a homemade compass. Drill a hole about 13” from the end of the tube then slide a pencil into the hole. Attach the other end of the tubing to the plywood with a screw. Spin the tube to draw a circle about 26” in diameter. This is the cut line for the round door.
Lay the second sheet of plywood flat on your work surface, then lay the front wall (already cut) on top. To make both walls identical in size, trace around the front wall and then use a jigsaw to cut the second sheet of plywood.
To make a long, thin peephole on the back wall, simply trace a 2x3 onto the plywood. Use a drill to make a starter hole on the inside of the traced line. Fit the jigsaw blade into the drilled hole and slowly cut along the drawn line for a smooth, precise rectangle.
Lay 48” cedar decking panels along the frame. Use a carpenter’s pencil as a guide to space the decking panels. The spacing in between the deck panels helps create airflow and will prevent the wood from warping. Fasten the boards at each end with galvanized nails.
Measure and line up the midpoints of both the walls and the decking. Fasten both walls to the decking using a nail gun. Use ring-shank nails and leave roughly six inches in between each nail.
Attach five 48" 2x6s to each side of the decking to create backrest walls that will curve up the sides of the treehouse. Fasten each 2x6 through the front and back walls with two nails on each end.
Where you added the extra wall support, pre-drill holes to accommodate three 1/8” diameter hex-head 6” screws. It is important to pre-drill to avoid splitting the carrying beam and the plywood. Screw the carrying beam in place.
Cut the transparent polycarbonate roofing to hang two inches over the walls’ edges. Use hex-head screws with neoprene washers to attach the roofing to the 2x3 beams. Overlap each sheet of roofing to properly keep rain out, and align each seam to lie on or next to a beam.
Use the curved pieces of scrap plywood to make the trim around the door and windows. Draw a second circle outside (2 inches for the door trim, and a little thinner for the portholes). Cut out the inner circle with a jigsaw leaving a donut-like trim piece. Repeat for every door and window.
Feed 5,000-lb. industrial-strength rope through the carrying beam. Slide a washer around the rope from the inside and tie the rope several times. When the treehouse is hoisted up, the knot will tighten and the washer will keep it from slipping through.
To make the step, use scrap plywood that's the same width as the trim around the door. Trace the door trim scrap to match the curve and cut it using a jigsaw. Paint it to match the trim, then when it is dry, use nails to secure it below the door.
Throw away those boring old plans for a box tree house. This tree house has rounded walls and hangs from a tree. Enjoy natural sunlight through transparent roofing with enough room to lie down and get comfortable inside. Parents might even find themselves relaxing in this tree house.
Fill the treehouse with pillows, blankets, books and games. Then invite the kids, or just hide away in there yourself!