I’ve been building my first mortise and tenon raised panel door. It is a small door. A very small door, but it is a good size to start with. Two raised panels with rails and styles. The door is 22 X 22 inches square. It is a dumb waiter style door that will go in an opening between the kitchen and dining room to replace one that was removed in about 1915. Of course (he writes with an air of snobbery), I made it out of salvage old growth redwood so it will match all of the other wood in the house. It was quite a challenge. Hopefully I’ll have pictures in a day or two.