


Yes, intend to reuse the door. Do you reckon removing the damaged vertical section will be easy without damaging the remaining frame?

I think this is your best bet and the easiest. It's plenty easy to move a hinge on both the door and the frame and then simply fill as suggested.A cheap easy alternative that might work
Providing that crack /split will close up quite well with some heavy clamps
Remove the face from the frame, plenty PVA glue deep into the crack, clamp and also put some heavy screws thrugh
When this is done reposition the bottom hinge near the bottom away from the repair, and may be put another hinge in the middle.
Taking the whole frame out and putting a new one in is a biggish job

Aye - fools seldom differ (or is it great minds think a like)I would be tempted to glue the crack and drive some screws through, then go for bigger hinges, and 3 of them, offsetting them so that the screw holes do not line up with the crack.
Edit- I hadn't noticed that @Munroast had recommended the same thing.
+1 for this.A cheap easy alternative that might work
Providing that crack /split will close up quite well with some heavy clamps
Remove the face from the frame, plenty PVA glue deep into the crack, clamp and also put some heavy screws thrugh
When this is done reposition the bottom hinge near the bottom away from the repair, and may be put another hinge in the middle.
Taking the whole frame out and putting a new one in is a biggish job
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