Building the door had some tricky elements. The top and bottom needed to be rounded to fit in the space (the threshold ended up being rounded on the edges), and my original plan of sandwiching pine tongue/groove siding with a plywood core just proved too heavy. So in the end, the outside was made with the tongue/groove siding, core was cut up as a simple frame to reduce weight, and inside face was made with the ultra-thin plywood sheathing i made the rest of the walls with - light and matched with the interior decor. The outside handle was something i picked up from Amazon. I also put a lock mechanism on the inside from some salvaged parts i found in the garage - whenever possible, good to salvage - thats what treehouse are all about.
