Warped door put to salvage test

Don't replace until trying DIY fix

Q: Our large — 48 inches by 83 inches — and very heavy wooden front door no longer closes tightly because it is warped.

The hinge side is even all the way. But, when closed, the side with the lock is flush with the molding at the top but flares along the length to the bottom, where it sticks out by 3/4 inch. It is a challenge to insert the dead bolt.

Is there anything we could do to salvage the door? If not, what replacement options do we have? Ideally, we’d like to keep the large size, but we could be persuaded otherwise. We’re not locked in to a particular material.