October 25th 2003 - Sides are 3/4" birch plywood. Made a quarter inch hard board template of the profile and then used a router with a 1/4" carbide bit and 7/16" collar to cut the shape. Made a couple passes on each side and they are virtual clones of one another. Note: The template was made 3/32" smaller than the finished wall size to account for half the difference between the collar & cutter size. Doors on each side of the cabin work great for two people and making the bed is much easier.