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Deadbolt Installation Guide — Free Printable Cheat Sheet

mediumHome Repair1.5 hrs

Step-by-step deadbolt installation cheat sheet covering tools, measurements, drilling, and strike plate alignment. This medium-difficulty guide costs roughly $30–$80 for the lock kit plus basic tools if you don't already own them. Complete in about 1.5 hours with just a drill, hole saw, and chisel.

Safety Warnings

  • Use caution when drilling to avoid damaging the door structure or hitting electrical wires
  • For exterior doors, avoid single-cylinder deadbolts with thumb turns if the door has glass panels within arm's reach — a burglar can break the glass and turn the lock
  • Double-cylinder deadbolts (key on both sides) can be a fire hazard; check local fire codes before installing

Tools Needed

Power drill — Variable speed with clutch
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Hole saw kit — 2⅛-inch for cylinder, 1-inch for latch
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Spade bit — 1-inch
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Chisel — 3/4-inch or 1-inch
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Hammer — 16 oz
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Combination square — Standard
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Tape measure — 25-foot
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Pencil — Standard
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Materials

Deadbolt lock kit — ANSI Grade 1 or 2 recommended for exterior doors(1)
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Wood shims — Assorted(1 pack)
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Masking tape — Standard(1 roll)
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Steps

1
Choose the right deadbolt location. Standard placement is 6 inches above the existing doorknob, but always check the manufacturer's template. Use a tape measure and combination square to mark a plumb line perpendicular to the door edge.
2
Fold the paper template from your deadbolt kit along the dashed line and tape it to the door face at your marked height. Use an awl or nail to punch center marks for the cylinder hole (2⅛-inch) and the latch edge hole (1-inch). Remove the template before drilling.
3
Drill the 2⅛-inch cylinder hole through the door face using a hole saw. Drill about halfway through from one side, then finish from the opposite side to prevent the wood from tear-out. This ensures a clean, splinter-free hole on both sides.
4
Drill the 1-inch latch hole through the door edge with a spade bit, angling slightly toward the cylinder hole to meet it. Drill straight and level — a crooked hole will cause the latch to bind.
5
Insert the latch assembly into the edge hole. Trace the faceplate outline with a utility knife, then chisel out a ⅛-inch deep mortise so the faceplate sits flush with the door edge. Secure the latch with the two provided screws.
6
Install the exterior cylinder through the face hole, aligning the tailpiece through the latch's cross hole. On the interior side, slide the mounting plate over the tailpiece and secure with the provided bolts. Attach the interior thumb turn or key cylinder.
7
Test the deadbolt operation with the door open. Extend and retract the bolt several times. It should move smoothly with no binding. If it sticks, check that the faceplate is flush and the latch hole is properly aligned.
8
Mark the strike plate location. With the door closed, extend the deadbolt to touch the door jamb. Mark the top and bottom of the bolt. Open the door and transfer those marks to the jamb using a combination square.
9
Drill a 1-inch hole in the door jamb for the bolt to extend into, approximately 1 inch deep. Position the strike plate over the hole, trace its outline, and chisel a mortise so the strike plate sits flush. Secure with 3-inch screws that reach the door framing for maximum security.
10
Final test: Close the door and lock and unlock the deadbolt multiple times. The bolt should slide cleanly into the strike plate hole without scraping. If the door binds, check alignment and adjust the strike plate position slightly. Apply graphite lubricant if needed.

Pro Tips

  • Replace the short strike plate screws (usually ½-inch) with 3-inch deck screws to anchor the strike plate into the door frame's stud — this dramatically improves kick-in resistance.
  • If your door has glass panels within 40 inches of the deadbolt, use a double-cylinder deadbolt (keyed on both sides) so a burglar can't unlock it by breaking the glass.
  • Test the bolt alignment by coating the bolt tip with lipstick or chalk — close the door, extend the bolt, then open it to see exactly where it hits the jamb.
  • Pre-drill all screw holes to prevent the wood from splitting, especially near the door edge.
  • Use a sharp brad-point drill bit for cleaner holes — standard twist bits can wander on the door surface.
  • If you're replacing an existing deadbolt, take the old one to the hardware store to confirm the new one fits the same bore hole diameter (standard is 2⅛ inches).

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