Door Knob Lock

No, door knob locks are generally supplemental; use a secure deadbolt as the primary external lock because knob locks usually have weaker internal mechanisms.

Yes, keyed knobs are fine for internal offices or bedrooms for privacy, but avoid them as a sole external security measure.

Check alignment (door sag), tighten mounting screws, lubricate the latch mechanism and replace the latch or spindle if wear is evident.

Swap to a door lever/lever-lockset matched to your door thickness and backset, ensuring the new furniture meets fire-escape and accessibility guidelines.