Step 5: Drill for the cylinder lockset

If you're installing a cylinder lockset, not a mortise lock, use a hole-saw kit to cut the necessary holes in the door edge and face. Be sure to adjust the jig for the right backset for your lock. The backset is the distance from the door's edge to the spindle.

Tip: If you have a cylinder lock, use a hole-saw to cut the necessary holes. Be sure to set the jig for the right backset for your lock.
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    Tools List

    • folding ruler
      Tape measure and folding ruler
    • circular saw
      Circular saw
    • bench plane
      Bench plane
    • combination square
      Combination square
    • wooden mallet
    • drill
      Drill/driver with auger bits
    • centering punch
      Centering punch
    • ratcheting screwdriver
    • hand clamps

    Shopping List

    1. DOOR

    Measure the width of your opening, jamb to jamb, in three places (top, middle,bottom) and the height, threshold to jamb, in three places. Note the largest of each and use these as a guide to buy the door.

    2. KNOB SET

    A set for a cylinder lock should include two knobs, a spindle, and two round escutcheon plates. For a mortise lock with a bolt, two escutcheons or a long backplate with a keyhole may be required.

    3. LOCKSET

    Choose between a cylinder lock (a tube-shaped ;acthset with a lock on the knob) or a mortise lock (a rectangular set with a bolt and a skelton key). You can reuse an old lock, but a new mortise lockset might be worth the cost (less than $20) just for the mortise-cutting template that comes with it. Before buying a mortise lock, make sure the distance from the spindle hole to the keyhole matches the one on the backplate you choose, and that the lock body isn't too thick to fit your door.

    4. HINGES

    You will likely need three to hanadle the weight of a solid-wood door or solid-core door. Many doors come with instructions that indicate the size and number needed.


    If necessary, for drilling for a cylinder lock. Tool companies make these kits, which come with two different hole saws that attach to a drill, along with a jig to guide where the holes go. Some kits also include a drill-mounted router bit and jig for carving out shallow mortises for the lock's faceplate and the strike plate.


    To hold the door in its opening as you check the fit and mark for hinges.