The door frame was an early worry so we started with it. It’s an over-sized door, round using two radii and two centers. Need a round oak moving door edge embedded into the door, and a round stationary oak door frame embedded into the wall. Screwed small mitered boards right onto template, then cut the curve with a router on a homemade trammel (compass). Cut a stepped profile to allow for gasket. Match-marked all the pieces, unscrewed it and later glued it into a wall panel. Glued both jamb and frame into one panel, full top and bottom skins, then cut the door out of the wall with a trim router running down the door gap.
Stand up the walls. We placed vertical pine sticks into sidewalls to catch screws from end walls, pine-to-pine all he way through. Since the outer skins are pretty, we didn’t want screw head showing outside, used Kreg jig on end walls.
Now we start bending up aluminum trim on wall edges