Plan a deadbolt installation on a steel door without assuming timber-door methods apply. Check existing preparation, internal reinforcement, fire labels, frame support and final operation.
Find out whether an unprepared metal door can accept a deadbolt. Check its construction, labels, internal reinforcement, frame preparation and approved installation before cutting.
Plan a new deadbolt installation before drilling. Check door construction, template scale, backset, clearances, bore alignment and the receiving frame, then verify the completed lock.
Replace a compatible deadbolt without creating alignment problems. Check the existing preparation, identify every part, fit the bolt and housings, and test the strike before closing up.
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