Most child safety cabinet locks are defeated by a determined toddler within the first two weeks. The spring-loaded latches that mount inside a cabinet door require you to push in and hold while pulling the door open, which sounds child-proof until you realize a toddler can figure out that same motion by watching you do it a dozen times. The ones that actually hold are magnetic locks, and the reason they hold is that the mechanism is invisible and requires a tool the child cannot see or access.
If you are installing cabinet locks for the first time or replacing ones that are not holding, start with magnetic locks. Everything else is a compromise.
Magnetic cabinet locks: the most effective option
Magnetic cabinet locks consist of two pieces: a locking mechanism that mounts inside the cabinet, and a magnetic key that you swipe on the outside of the door to release the lock. From the outside of the cabinet, there is nothing visible. No latch, no button, no mechanism a child can see and experiment with.
The installation requires drilling two small pilot holes per cabinet: one for the mounting screws of the lock body and one for a small strike plate on the door or frame. The lock snaps closed when the door shuts and requires the specific magnetic key to open. The key is typically kept on top of the refrigerator or another location out of reach.
These hold reliably against sustained toddler pulling and do not become easier to open with repeated use the way spring latches do. They work on both hinged doors and drawers. A full set for a kitchen typically runs $25 to $40 and covers 8 to 12 cabinets. Find quality magnetic lock sets on Amazon — look for brands with at least 4 stars and enough reviews to reflect real household use.
Spring-loaded latches: reliable with limitations
Spring-loaded latches mount inside the cabinet and require pressing a tab while pulling the door open. They are more effective than adhesive straps and significantly easier to install than magnetic locks since they only require screws, no drilling for the strike plate.
They work well for cabinets you access infrequently, since pressing the release becomes annoying on cabinets you open 20 times a day. They are also visible from inside the cabinet, which means a child who opens the door even a crack can see and learn the mechanism. For high-use cabinets or cabinets with genuinely dangerous contents, magnetic locks are the better choice.
Adhesive cabinet straps: the renter option
Adhesive cabinet straps wrap around a door handle or knob and attach to the cabinet frame with adhesive pads. They require no drilling and leave no permanent marks, which makes them appropriate for renters or for temporary situations.
They are significantly less effective than either of the hardware-mounted options. Determined toddlers often work out the mechanism by watching the strap flex when the door is pulled. The adhesive also fails over time in warm or humid conditions. Use them as a temporary measure or in lower-risk cabinets while you complete a proper magnetic lock installation elsewhere.
For corner guards, cabinet edge bumpers, and the full set of child safety accessories that complete a childproofing project, Tiny Land carries child safety products designed with both effectiveness and aesthetics in mind.
Which cabinets actually need locks
Not every cabinet in the house requires the same level of restriction. Prioritize locks on cabinets containing cleaning products, medications, sharp objects, or heavy items that could fall on a child. Cabinets containing dry goods, pots, or plastic containers are lower priority and may not need locks at all, since the contents are not dangerous.
Drawers get the same prioritization. Kitchen knife drawers are high priority. A drawer containing dish towels is not. Being selective about where you install locks also reduces the daily friction of getting into your own cabinets, which is a real quality-of-life consideration when you live with these locks for years.
Installing magnetic locks correctly
Hold the lock body against the inside of the cabinet door with the magnet-facing side toward the door. Mark the screw hole positions with a pencil. Drill pilot holes slightly smaller than the mounting screws to prevent splitting. Mount the lock body.
With the lock body installed, close the door and use the provided strike plate marker (most kits include one) to mark the position on the door frame where the locking pin contacts. Remove the door, drill a shallow recess at the mark, and mount the strike plate. When the door closes, the lock pin engages the strike plate automatically. Test with the magnetic key before installing on additional cabinets.
For a broader look at home childproofing beyond cabinets, see how to childproof your home for the room-by-room approach. And since ADHD children often require extra attention to cabinet and drawer safety, see how to help a child with ADHD for the home environment strategies that support focus and safety simultaneously.
For bathroom and small-space organization that accounts for child safety while maintaining storage, see how to organize a small bathroom with safety in mind. And for the complete home project resource that covers DIY repairs and home improvements on a budget, the Broke Mom Home Reset ($17) includes the practical framework for tackling the projects that matter most.

