Up is to the right
Next step, chop the mortice in the stile for the lock. The challenge is to get it in the exact right spot. I'm not confident that careful measuring will be good enough. I can probably get the vertical correct but the distance from the front of the cabinet looks challenging.
So I could ink up the end of the bolt, close the door and use the key to extend the bolt. But this dark wood doesn't show ink well. Suggestions?
Lock.jpg