If you’re wanting to add a simple door latch to your bedroom or bathroom door, it is a simple DIY project that most homeowners can complete in less than an hour.
At Dorset, we've designed our safety bolts and latches to be as user-friendly as possible during installation, but proper technique is still important for both security and longevity.
Choosing the Right Spot
Start by picking the right spot on the door. For bedrooms and bathrooms, it should be easy for adults to reach, but possibly out of reach for little kids if needed.
Most latches work best when placed between 48 and 54 inches from the floor. That’s a comfortable hand height for adults. But think about who uses the room. A kid’s bedroom might need it lower, while a master bedroom might be fine at standard height.
Also think about how the door opens and which side you’ll use the latch on. Place it where it feels natural to use and doesn’t get in the way of other hardware.
Measuring and Marking the Points
Good measurements make for a neat, working latch. Decide exactly where on the door you want the latch. Think about looks and ease of use.
Use a spirit level to make sure your lines are straight. A crooked latch won’t just look bad, it might not work right. Mark where the screws will go on the door and the matching spot on the door frame where the strike plate will sit.
Double-check everything before drilling. Fixing a pencil mark is easier than patching a wrong hole.
Tools and Materials You’ll Need
Having the right tools nearby makes everything easier. You’ll need:
- A drill with the right bits
- A chisel (if a recess is needed)
- A measuring tape
- Wood screws (check the length)
- A pencil and spirit level
- A utility knife (for smoothing rough edges)
- Make sure the screws are the right length. Not too short or too long for your door.
Installing the Latch
Drill small pilot holes for the screws. This helps prevent the wood from splitting. Use a bit slightly smaller than the screws for a tight fit.
Line up the latch body with your marks and screw it into place. Don’t overtighten. You could strip the holes or bend the mechanism. The latch should sit flat against the door and move smoothly.
Test it a few times to make sure it works easily and resets correctly. If it feels stiff, check if it’s sitting straight or if the screws are in the way.
Fitting the Strike Plate
The strike plate (or catch) must line up with the latch. With the latch on and door closed, mark exactly where the latch hits the frame.
You’ll likely need to chisel a small recess into the frame so the plate sits flat. Take your time here. If the plate doesn’t sit right, the door might not close properly or may feel loose.
Final Testing and Adjustments
Once both parts are installed, test the whole system. It should open and lock smoothly, hold the door closed, and be easy to use.
Check how the door looks when latched. It should shut fully, without forcing it. If not, adjusting the strike plate just a little often fixes the issue.
If the latch works from both sides, test both. And if it has an indicator, make sure that works too.
Special Tips for Different Doors
Hollow core doors, common in many bedrooms, require special attention during installation. These doors have limited solid material for screw attachment, so you may need longer screws or special hollow door anchors for secure mounting.
Solid wood doors generally provide excellent screw holding power but may require pilot holes to prevent splitting. Take care not to drill completely through the door unless your latch design requires it.
Metal doors or frames need different approaches entirely, often requiring self-tapping screws or pre-drilled holes with appropriate anchors.
Choose the Right Hardware
Your latch will only work as well as the quality of the hardware. Dorset’s safety bolt range offers different door lock types, like Baby Latch Small and Baby Latch Big, which are made for everyday use and smooth operation.
For added security or visibility, try our Indicator Bolt. It shows if the latch is locked, which is great for privacy in shared homes.
For tall doors or places where you need to reach higher, the Tower Bolt offers the same strong hold with more length and flexibility.
Installing a door latch on bedroom and bathroom doors is a practical DIY project that significantly improves privacy and security in your home. With proper planning, the right tools, and attention to detail, you can achieve professional results that provide years of reliable service.
Take your time with measurements and alignment. These details make the difference between a latch that works perfectly and one that causes ongoing frustration.