
Plastic doors are often balcony doors, which can accidentally latch, locking you out. There are several ways to lock a plastic door, depending on the type of lock or handle it has. One way is to barricade the door with furniture, such as a chair, desk, or bed, to prevent it from swinging open. Another method is to use a belt or rope to tie the door shut, especially if it has an automatic hinge at the top. You can also remove the door handle or knob with a screwdriver to prevent people from entering the room, but this will also prevent you from getting out.
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What You'll Learn

Barricade the door with a chair
Barricading a door with a chair is a simple yet effective way to prevent unwanted entry. This method has been used for decades, especially in movies, and can be a reliable way to secure a door. The process is straightforward: place the chair firmly against the door handle, ensuring that the back of the chair and the legs act as a brace bar. This method only works if the door and doorknob are of solid construction, the chair is the correct height and build, and the floor is suitable. For example, a chair with longer back legs will not be stable on a smooth floor as it can be easily pushed back. Therefore, when barricading a plastic door with a chair, it is essential to consider the stability of the chair and the potential force applied to the door.
The first step is to assess the door and its surroundings. Identify the most suitable chair for the task, considering its height, weight, and stability. A heavier chair with a sturdy build will provide more resistance and make it harder to push the door open. Additionally, the right chair height is crucial to ensure that the chair's back and legs effectively brace the door handle.
Next, position the chair firmly against the door. Place the chair as close as possible to the door handle, with the back of the chair directly against the handle. Ensure that the legs of the chair are stable and provide a strong base of support. If the chair has wheels, lock them to prevent any movement.
To enhance the barricade's effectiveness, consider using multiple chairs. Place additional chairs against the first chair, forming a stronger barrier. Additionally, you can stack heavy objects on the chairs to increase their weight and make them more challenging to move. However, be cautious not to overload the chairs, as this may cause them to collapse or become unstable.
Finally, test the barricade by attempting to open the door. Apply force to the door and ensure that the chair holds its position and effectively prevents the door from opening. This step is crucial to ensure the security of the barricade. By testing it, you can identify any potential weaknesses or adjustments needed to improve its effectiveness.
Barricading a plastic door with a chair is a practical solution to enhance security. While it may not be as robust as a traditional lock, it provides a physical barrier that deters unwanted entry. This method is especially useful in situations where a quick and temporary solution is required. Remember to consider the stability and suitability of the chair and always test the barricade to ensure its effectiveness.
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Create a makeshift lock with a fork
While a plastic door may be more affordable and lightweight, it may not offer the same level of security as a wooden or metal door. If you are looking for a quick, temporary, and inexpensive solution to lock a plastic door from the inside, you can create a makeshift lock with a fork. This method can be used as a deterrent to potential intruders, adding an extra layer of security to your home or property.
- Choose the Right Fork: Select a fork with prongs that are between 1 ¾"–2" in length. This ensures they are long enough to function effectively as a lock.
- Prepare the Fork: If the prongs are too long, you can bend them backward to fit your door latch. You may also want to paint or decorate the fork to match your door's aesthetics or make it more conspicuous as a deterrent.
- Insert the Fork: Strategically place the fork in the door frame or jamb. Typically, the fork is inserted horizontally with the prongs facing outward, creating a barrier that prevents the door from being pushed open from the outside.
- Secure the Fork: Use a rubber band or other material to secure the fork in place. Wrap the rubber band around the door handle, holding the fork tightly in position.
- Test and Adjust: Once installed, test the stability of the fork by trying to open the door from the outside. Make any necessary adjustments to ensure the fork effectively obstructs the door's movement.
Remember, while this DIY fork lock can be a creative and inexpensive security solution, it may not offer the same level of protection as commercial locks or alarms. It is essential to regularly maintain and monitor this makeshift lock to ensure its effectiveness. Additionally, combining this method with other security measures, such as a security system or locking windows, can further enhance the overall security of your home or property.
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Use a belt or rope to secure the door
If your plastic door has a metal automatic hinge at the top, you can use a belt or a rope to secure it. Here is a step-by-step guide:
- From the inside of the door, tightly tie one end of the belt or rope to the door handle.
- Tie the other end of the belt or rope to a heavy object near the door, such as a bed or a refrigerator. The heavier the object, the better.
- Ensure that the belt or rope is pulled taut, with no slack, to effectively secure the door.
Alternatively, if your plastic door has an automatic hinge at the top, you can follow these steps to use a belt or rope:
- Wrap and tie a belt or rope around the hinge, guiding the end of the belt or rope through the hinge arm bolted to the door frame.
- Tightly wrap the belt or rope around the rest of the hinge, weaving it through the centre of the loop to keep it in place.
- This method is temporary and only works on inward-swinging doors with a hinge.
By following these simple steps, you can effectively secure your plastic door using a belt or rope.
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Place cardboard or a towel by the handle
If you're looking for a quick fix to lock a door, you can use a fork. Bend a quarter of the prongs of the fork at a 90-degree angle. Cut the handle off, leaving about an inch on the prong end. Put the bent prongs in the door latch and close the door on the fork, with the end sticking out. Insert the handle through the prongs, with half across the door and the other half over the door frame.
Now, here's where the cardboard or towel comes in: place a piece of cardboard or a towel on the side of the handle, across the door frame. This will keep the door from wiggling and add stability to your makeshift lock. This method works on both inward and outward-swinging doors with a latch.
This hack is especially useful when travelling and staying in hotels. It can give you peace of mind, ensuring your hotel stay is as safe as possible. You can use a small hand towel or a washcloth and place it over the engaged latch (not the doorknob or handle). This prevents people from using tools, wires, or hooks to gain access to your room.
Additionally, you can also use a door wedge or doorstop made of cardboard or a rolled-up towel to jam the door shut. This method works by sticking the wedge or doorstop in the gap between the floor and the door, creating a barrier that prevents the door from being opened.
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Remove the door knob or handle
To remove a door knob or handle, you'll need to identify how it's fastened to the door. Most handles are secured with exposed mounting screws, so check the neck of the knob or lever for any visible screws. If there are exposed screws, simply remove them with a Phillips or flat-head screwdriver. Turn the screws counterclockwise to loosen them. With the mounting screws removed, you can pull the knobs or levers out of the latch mechanism.
If you can't find any visible screws, check for a slot in the neck of the knob or lever. You may need to use a thin screwdriver, Allen wrench, or even a paperclip to depress or unscrew a recessed fastener in the handle's neck. If you see a Phillips or flat-head screw inside the hole, use a screwdriver that's small enough to reach and turn it counterclockwise to loosen it. If you encounter a hex-head screw, you'll need an Allen wrench small enough to insert into the slot and turn it counterclockwise to loosen and remove the screw.
In some cases, you may need to pry off or unscrew a cover plate behind the handle to access the mounting screws. This is often the case when there are no visible screws or slots on the knob or handle. Once you've removed the cover plate, look for any recessed fasteners attached to the handle's base and undo the mounting screws.
If your door knob has a thin part, known as the shank, check for a little metal tab or tiny hole. Use a standard screwdriver to push in the tab, or a nail punch for the hole. With a gentle tug, the knob should come off. You can then use a screwdriver to remove any remaining hardware.
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Frequently asked questions
If your plastic door has a handle that only closes the door from the inside, you can install a simple handle on the outside to pull it closed. You can do this yourself with a special flexible hex screwdriver, or you can get a window installation company to do it for you.
You can barricade your plastic door by placing furniture in front of it, such as chairs, desks, beds, cabinets, or bookshelves. This will work for inward-swinging doors. You can also use a belt or rope to lock a commercial building door. Wrap and tie a belt around the door and guide the end of the belt through the hinge arm bolted to the door frame.
You can use a fork to make a temporary lock. Use pliers to bend a fork's prongs up at a 90-degree angle, then cut off the handle with wire cutters, leaving about an inch. Open the door and put the bent prongs in the door latch, then close the door on the fork. Insert the fork's handle through the prongs, with half across the door and the other half over the door frame.
You can prevent a plastic door from being opened with a shim by ensuring that the deadlatch button is properly configured and engaged. This will prevent the latch from being slipped. You can also close off any physical gaps in the door by installing a security astragal and a security door sweep.











































