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Typical existing door frame Remove old strike plate and carefully remove the weather stripping. Mark the cut-out area with the template provided or use the DSA plate. Marked cleat ready for cutting Attach a Router guide or cut with hand saw. Route out entire area at a depth of 3/16 inch Routed and mortised Remove guide Mark incision for the plate with template or DSA plate. Cut thru door frame with roto-zip or sawzall Finish edges with chisel Make sure everything fits Mark plate for cleat or use the new adjustable cleat provided. Mount cleat onto plate. (Not needed if using the adjusable cleat.) Use the mallet to remount plate CUT-OUT IS FOR VISUAL ONLY!!! Secure the plate with screws provided Cut flange off the weath stripping where it meets the DSA plate and replace the weather-stripping Caulk the cut areas as needed. Paint or stain as needed.