How to Install a Doorknob Reinforcer: Step-by-Step Instructions and Pictures

Wrap-around metal plates strengthen exterior doors against break-ins. Read an overview on how to install a doorknob reinforcer.
From The Family Handyman
How to Install a Doorknob Reinforcer-Step 1
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1. Measure the “backset,” the distance between the door edge and the center of the door knob; the thickness of the door; and the knob hole diameter. Buy a reinforcer that fits all those measurements.
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