Installing a Dead Bolt and Lockset
Mark the lock height (36 inches from floor is standard) and center on door edge
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Tools Needed
- drill
- hole saw 2-1/8 inch
- spade bit 1 inch
- chisel
- screwdriver
- tape measure
- pencil
Parts & Materials
Available from multiple retailers
Available from multiple retailers
Available from multiple retailers
Available from multiple retailers
Available from multiple retailers
⚠️ Safety First
🔧 Tools Needed
📦 Materials
📋 Step-by-Step Instructions
1. Mark the lock height (36 inches from floor is standard) and center on door edge
2. Use template to mark both holes, face hole and edge hole locations
3. Drill face hole with 2-1/8 inch hole saw from both sides to prevent splintering
4. Drill edge hole with 1 inch spade bit until it meets the face hole
5. Insert deadbolt assembly and mark the latch plate outline on door edge
6. Chisel out mortise for latch plate, test fit for flush installation
7. Install deadbolt mechanism and exterior cylinder
8. Install interior thumb turn and secure all screws
9. Close door and mark strike plate location on jamb
10. Drill 1 inch hole for bolt, chisel mortise for strike plate
11. Install strike plate with long screws into framing
12. Test operation and adjust as needed for smooth function
💡 Pro Tips
❌ Common Mistakes to Avoid
🔍 Troubleshooting
Key won't turn
*Cause:* Misaligned cylinder or debris
*Fix:* Check alignment, clean cylinder, lubricate with graphite
Bolt sticks
*Cause:* Binding in strike plate
*Fix:* File strike plate opening, adjust door alignment
Loose handle
*Cause:* Loose screws or worn mechanism
*Fix:* Tighten all screws, replace if mechanism is worn
❓ Frequently Asked Questions
Q: Single or double cylinder
A: Single cylinder for doors without glass, double cylinder if glass is within 40 inches of lock
Q: Can I install on hollow door
A: Yes, but use a door reinforcement kit for hollow core doors
✅ Checklist
Related Guides
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Measure and mark reveal line 1/4 inch from door frame edge
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