A credit card can open some doors, but only certain types, and the method damages the card
A credit card can sometimes open a door that is closed but not deadbolted — specifically, doors with simple spring locks (the kind that click shut on their own). The technique involves sliding the card between the door and frame to push the latch back into the door. It works because spring latches sit on the surface of the door frame rather than sinking into it, leaving a gap you can exploit.
This only works on doors with spring locks, not deadbolts. A deadbolt slides horizontally into the frame and cannot be pushed back from outside. Most exterior doors and many interior doors in apartments and offices have deadbolts for this reason. Even if the door has only a spring lock, the card method fails if there is a chain, bar, or additional lock engaged from inside.
The card itself will be damaged — bent, creased, or snapped. This is not a gentle process. If you are using a card you intend to keep using, expect to replace it afterward.
Key Takeaways
- Spring locks (the kind that click shut automatically) can sometimes be opened with a card, but deadbolts cannot.
- The card slides between the door and frame to push the latch back, and this bends or breaks the card in the process.
- If you are locked out of your own home or apartment, calling a locksmith is faster and safer than attempting this method.
- Using this technique on a door you do not own or have permission to open is breaking and entering, regardless of your reason.
Why this method works on some doors and not others
A spring lock has a beveled latch that protrudes from the door into the frame. When you close the door, the latch catches on the strike plate (the metal piece on the frame) and holds the door shut. The latch is not locked into place — it is just resting against the strike plate. A card can slide into the gap between the door and frame and push the latch back far enough to clear the strike plate, allowing the door to open.
A deadbolt works differently. It slides horizontally into a hole in the strike plate and locks in place. There is no gap to exploit, and no amount of card pressure will move it. Most deadbolts also have a reinforced strike plate and a longer bolt, which makes them harder to force open by any method.
Interior doors in homes and offices often have only spring locks because they are not meant to be secure — they just keep the door from swinging open on its own. Exterior doors almost always have deadbolts, sometimes in addition to a spring lock. Apartment and office building doors typically have both, or a deadbolt only.
The actual steps if you need to try this
Use a card you do not mind damaging — an old gift card, expired card, or card you were planning to discard. Do not use your active credit card or debit card.
Slide the card into the gap between the door and the frame, on the side where the latch is. Push it in at an angle, aiming the card toward the latch. Once the card is in contact with the latch, push the card toward the hinges (away from the latch side) while pushing the door handle down or pushing the door itself. The latch should move back into the door, and the door should swing open.
If the door does not open after a few attempts, it either has a deadbolt, a chain or bar is engaged from inside, or the strike plate is installed in a way that does not leave enough gap. Stop trying — you are just bending the card and damaging the door frame.
When you should call a locksmith instead
If you are locked out of your own home, apartment, or car, call a locksmith. A locksmith can open the door without damaging it, will have the right tools, and can help you if the lock is more complex than a simple spring latch. The cost is usually between $50 and $150 depending on your location and the time of day, and it is worth it to avoid damaging your door or frame.
If you are renting, check your lease first — many landlords require you to call them before calling a locksmith, and some will cover the cost. If you are locked out of a car, call roadside assistance (AAA, your insurance company, or your car manufacturer's roadside service) rather than attempting this yourself. They have the proper tools and will not damage your vehicle.
If you have lost your keys, a locksmith can also rekey your lock or make new keys, which is faster and more reliable than trying to open the door repeatedly.
Legal and safety concerns
Using this method on a door you do not own or do not have permission to open is breaking and entering, even if your intention is not theft. This applies to rental properties, shared spaces, and any door that is not yours. Do not attempt this on someone else's door under any circumstances.
If you are locked out of a rental property, contact your landlord or property manager. They have a legal right to enter and can let you in. If you are locked out of a shared space (a garage, storage unit, or common area), contact the property manager or owner.
Attempting to force a door open can also damage the door frame, strike plate, or door itself, which you may be liable for if you are renting. A locksmith's damage is usually minimal and covered by their insurance.
Alternatives if the card method does not work
If you have tried the card method and the door did not open, the lock is likely a deadbolt or there is an additional lock engaged. Your options are to call a locksmith, contact your landlord or property manager, or break the door down (which causes significant damage and should be a last resort).
If you are locked out of a car, do not attempt to break a window or force the door — call roadside assistance or a locksmith who specializes in cars. Attempting to force a car door can trigger the alarm, damage the lock mechanism, or injure you.
If you are locked out of a safe or security box, call the manufacturer or a locksmith who specializes in safes. Do not attempt to pry it open with tools.
Preventing lockouts in the future
The easiest way to avoid needing to open a locked door is to prevent being locked out in the first place. Keep a spare key with a trusted friend or family member, hide a spare key in a secure lockbox outside your home, or install a keypad lock that allows you to enter a code instead of using a key.
If you rent, ask your landlord whether they keep a spare key on file. Many landlords do, and they can let you in if you are locked out. If you own your home, consider installing a smart lock that you can unlock from your phone, or a keypad lock with a code you can change.
For cars, keep a spare key in your wallet or with a trusted person, and consider adding roadside assistance to your insurance or joining AAA. For safes and security boxes, keep the combination or key in a secure location separate from the safe itself.
Frequently Asked Questions
Will using a credit card to open a door damage my credit?
No. Physically using a card to open a door does not affect your credit score or credit report. Your credit is tied to your payment history and credit usage, not to what you do with the physical card. The card itself will be damaged and unusable, but that is a separate issue from your credit.
What type of card works best for this?
A thin, stiff card works best — old gift cards, expired credit cards, or library cards. Avoid using your active credit or debit card. The card needs to be thin enough to slide into the gap but stiff enough not to bend immediately. Plastic cards work better than paper cards.
Can I open a deadbolt with a credit card?
No. Deadbolts cannot be opened with a card because the bolt slides horizontally into the frame and locks in place. There is no gap to exploit. If you are locked out and the door has a deadbolt, you need a locksmith or the key.
Is it illegal to open someone else's door with a credit card?
Yes. Attempting to open a door you do not own or do not have permission to open is breaking and entering, regardless of your reason or intention. This applies even if you are trying to help someone or retrieve something. Always contact the owner, landlord, or police if you need to enter a space that is not yours.
How much does a locksmith cost if I am locked out?
Locksmith costs vary by location and time of day. A typical lockout service costs between $50 and $150 during business hours, and more if you call after hours or on weekends. Some locksmiths charge a service fee plus an hourly rate. Call ahead and ask for a quote before they arrive.