Standard outside door locks do not provide much security. Add a deadbolt lockset to your wood entry door to provide additional safety to the home. It helps to prevent home invasions and protects the family. This project is not difficult if you follow the deadbolt manufacturer instructions and the steps below.
You will need:
Step 2: To choose the proper lockset, know whether the door is left or right-handed, how thick it is, and the backset distance. If the hinges are on the right, the door is right-handed. With a left-handed door, the hinges are on the left. Most doors are 1 3/8 or 1 ¾ inches thick, but 2 ¼-inch thick doors are also sometimes found. The backset is the distance between the edge of the door and center line of the doorknob or of the hole where the doorknob will be placed. It is usually 2 3/8 or 2 ¾ inches. The deadbolt and doorknob must have the same backset in order to be aligned properly.
Step 2: Deadbolts are usually sold in packages of two or three and keyed alike so only one key is needed to open the doors to the home.
Step 3: Remove the existing doorknob by unscrewing the two screws that hold it in place and pulling apart the two knobs.
Step 4: Follow the paper template provided by the deadbolt manufacturer to determine where the deadbolt hole should be placed. Place the template with the fold on the correct edge of the door bevel. Square the template to the door with the combination square.
Step 4: Mark the centers of the face and edge bore holes on the door. Check the backset and door thickness to make sure you are referring to the correct areas on the door template. Use the awl to pierce the template in the centers of the face and edge bore holes.
Step 5: Drill a 1/8-inch pilot hole in the door edge for the edge bore, going about 2 inches deep.
Step 6: Put on the safety goggles and dust mask and drill the face bore with the hole saw. Drill slowly until the pilot bit begins to come through the other side. Then, finish drilling the hole from the other side.
Step 7: Close the door and insert the 2-inch nail through the face bore into the pilot hole drilled for the edge bore. Press in on the nail until it makes a mark on the door jamb. This is the center of the hole that will be drilled in the door jamb for the dead bolt to fit into.
Step 8: Use the smaller hole saw or the spade bit to drill the edge bore, the door hole for the latch bolt. Then drill a hole centered on the mark made by the nail, going a minimum of 1-inch deep. If the deadbolt goes more than 1-inch into the door jamb, extend the hole. All holes must be drilled straight.
Step 9: If the deadbolt has an adjustable backset, adjust it now, according to the manufacturer instructions. Position it in the edge bore and test it for correct operation. If necessary, adjust the size of the hole. Hold the backset steady and trace the plate outline using the razor knife. Remove the backset from the door and chisel out a mortis for the plate so the plate will be flush with the outer surface of the door.
Step 10: Put the bolt back in its place and drill pilot holes, then drive in the screws to install it.
Step 11: Center the deadbolt strike plate over the hole drilled in the door jamb. Trace its outline with the razor knife, remove it, and chisel the mortis so the strike plate will be flush with the outer surface of the door jamb.
Step 12: Place the plate on the door jamb, drill pilot holes, and drive in the screws to install it.
Step 13: Assemble the deadbolt cylinder and the new door knob, using the screws and screw driver. Replace the door latch strike plate, if necessary. Test the latch to make sure the existing hole is deep and wide enough.
Step 14: If the door feels a bit loose when it is locked, bend the adjustable tab of the strike plate in or out to eliminate looseness.