Seco-Larm Enforcer Universal Door Strike (SD-996C-NUQ) by Seco-Larm

now it's time to prepare the doorframe for the installation of the door release mechanism which we call the electric strike the site where we've been working happens to have a metal doorframe so let's cut away for a minute - a wooden door frame which is more typical here's your existing strike it holds the door shut you want to look at it to make sure that it's positioning the door correctly the door is firm when it shut this will be used as a guideline in the positioning of the new electric strike assuming this strike is in the right place we can use these holes as guidelines to the positioning of the template which will create the proper spacing for the cavity now we're going to use these holes to establish a centerline let's colorize these to make these more clear now I'm positioning the template on top of the drawn center lines now let's determine how much of the door frame needs to