Replace an Interior Door Knob
Learn what the project involves, which supplies to identify before shopping, and when professional help is safer. No registration or credit card.
Safety first
Confirm the exact product, existing conditions, applicable codes and manufacturer directions before starting. If the work reveals hidden damage, stop and reassess.
Tools & materials checklist
Compare the tools and materials for this repair, then check Home Depot, Lowe’s or Amazon. Product photos will be added from approved catalog sources.
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Project-specific work plan
- Check backset and door thickness
Check the product instructions and site conditions at this stage. Stop if the installation differs from what you expected.
- Remove existing hardware
Check the product instructions and site conditions at this stage. Stop if the installation differs from what you expected.
- Install latch in correct orientation
Check the product instructions and site conditions at this stage. Stop if the installation differs from what you expected.
- Fit handles
Check the product instructions and site conditions at this stage. Stop if the installation differs from what you expected.
- Test latch and privacy function
Check the product instructions and site conditions at this stage. Stop if the installation differs from what you expected.
Pro tip: save time and money
Measure backset before shopping; similar-looking sets may not fit.
Compare total cost, including preparation, replacement materials, extra trips to the store and your time—not just the shelf price.
Before you call it finished
- Check that the product operates normally.
- Inspect for leaks, movement, gaps or other signs of failure relevant to this project.
- Save packaging, model details and warranty documents.
- Recheck the work after regular use.
Helpful video tutorials
Watch a relevant demonstration before starting. Check the model, safety steps and local code requirements for your project.
Video tutorials for this repair are being reviewed. No unverified video links are displayed.

DIY with Michael Borders — YouTube candidate; playback and content not independently reviewed.
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Home Repair Hub — YouTube candidate; playback and content not independently reviewed.
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Tomahawk DIY — YouTube candidate; playback and content not independently reviewed.
Watch video ↗Direct links are identified as such. Search cards are not reviewed videos. Videos are hosted by their respective creators.
DIY or hire a professional?
If the work needs permits, involves hazardous utilities, hidden damage, unsafe access or exceeds your experience, hire an appropriately qualified professional. Compare written quotes for the same scope.
Check a quote →Quote-checker numbers are currently illustrative, not verified ZIP-code estimates.