he obvious benefit of security doors is the protection it provides. A robber would have to use a sophisticated machine of some sort to open the locks on a steel door. In fact, most doors are actually drill-proof, and special devices are required to open them. Fortunately most burglars are not going to want to draw attention to themselves by attempting to open your steel door.
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This post has been edited by securitydoor: Feb 23 2016, 06:52 PM