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The general consensus with a front door is that you want the stop (the lip of wood the door closes against) to be a solid part of the frame - ie the frame starts as a big chunk of wood and the recess for the door is removed from that chunk.
If that’s not possible, or if it’s an internal door, the stop is added to a plain frame by screwing / nailing / gluing a bit of wood on. It’s less secure but if it’s glued I doubt a burglar is going to lever off all the stops around your door to get in. Even then the lock and hinges would keep the door in place.
We got a quote for a second hand front door we bought to be fitted in a new wooden frame. The carpenter who quoted for it on Monday said this:
What does it mean?