
Plastic folding doors, also known as bifold doors, are a great space-saving option for small areas. They are easy to install, even for beginners, and can usually be set up in a single afternoon. This guide will take you through the process step-by-step, from selecting the right door to the final installation. First, it is important to measure the space accurately to ensure the door fits. Most interior doors are designed for standard openings, but it is crucial to check for any irregularities. Once you have selected a door, you can begin the installation process by assembling the track and attaching it to the frame. Next, you will need to connect the pivots and brackets, ensuring they are aligned correctly. Finally, you can hang the doors, making any necessary adjustments to ensure they are level and functional.
Characteristics and Values Table for Installing Plastic Folding Doors
| Characteristics | Values |
|---|---|
| Space | Install folding doors where space is limited. |
| Door type | Bi-fold doors slide open from the center and fold against the wall. |
| Door selection | Choose a door that fits your space. |
| Door size | Measure the space before installation to ensure the door fits. Most interior doors are 80 1/2 inches high. |
| Door painting | Choose a pre-painted door or paint it before installation. |
| Door hardware | Bi-fold doors may include pulls, or you can install decorative hardware. |
| Installation process | Refer to the door's manual for specific installation steps. |
| Track | Assemble the track before mounting it. Attach the track to the header of the frame. |
| Pivots | Connect the top and bottom pivots and screw them into place. |
| Jamb bracket | Screw the jamb bracket into the bottom corner of the frame. |
| Hinges and plates | Lay each door panel flat and attach the hinges and mounting plates. |
| Height adjustment | Adjust the door height using the rotating arm or hinge pin. |
| Alignment | Use a plumb bob to ensure the doors are plumb when installed. |
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What You'll Learn

Choosing the right door
When choosing a plastic folding door, it's important to consider both function and design. Understanding the different types of door hardware and their unique features will help you select the most suitable door for your space. Here are some factors to consider when choosing the right plastic folding door:
- Door Type and Functionality: Different types of doors include pocket doors, wall-mount doors, bypass doors, multi-pass doors, and bi-fold doors. Each type has distinct features and functions, so selecting the right one depends on your specific needs and the layout of your space. For example, pocket doors slide into a pocket in the wall, saving space and offering a sleek, hidden look.
- Design and Aesthetics: The design of the door hardware can significantly enhance the overall appearance of your home. Consider the style, color, and material of the door to ensure it complements your existing décor and design themes. Pay attention to the small details, such as the hardware finish and any additional design elements, to create a cohesive and stylish look.
- Size and Dimensions: Ensure that you select a door that fits the dimensions of your doorway or opening. Measure the width, height, and thickness of the opening to choose a door that will operate smoothly and provide a proper seal or closure.
- Durability and Material: Opt for a door made from durable and high-quality materials that can withstand regular use and provide long-lasting performance. Consider the specific environment and conditions the door will be subjected to, such as moisture or heavy traffic, and choose a material and construction that suits your needs.
By carefully considering these factors, you can make an informed decision when choosing the right plastic folding door for your home or space. Remember to balance functionality with design aesthetics to create a seamless and beautiful addition to your interior.
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Preparing the space
Once the measurements are taken, select a folding door that best suits the dimensions of your space. It is important to choose a door that is wide enough to cover the opening and short enough to clear the floor when installed, leaving no significant gap. Consider the number of doors needed, as longer openings may require a set of doors to fully cover the space. Additionally, decide on the style and finish of the door to complement your home.
After selecting the appropriate door, it is time to prepare the door opening. Remove any old doors and hardware, filling old screw holes and making any necessary repairs. This ensures a smooth surface for the new door installation. It is also helpful to lightly mark the centres of the closet and use a level to mark plumb lines on the sides of the jambs, aiding in the positioning of the new doors.
Before beginning the installation, gather all the required tools and hardware. Most folding doors come with pins, brackets, tracks, and screws needed for installation. However, it is important to check if any additional items, such as hinges or springs, are required. Additionally, refer to the manual or diagrams provided with your door for specific instructions and measurements regarding hardware positioning.
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Installing the track
Installing bifold doors is a manageable DIY project, even for beginners. The process begins with installing the track, which must be fully assembled before being mounted. First, connect the top and bottom pivots and screw them into place with a multi-bit screwdriver. Next, attach the track to the header of the frame using the mounting hardware. Ensure that the track is centred and positioned 1 inch from the front edge of the header. This positioning will provide enough room to conceal the track with trim later without impeding the door's function.
Now, slide the hanging hardware into the track, including the track hangers with wheels and the pivot socket on the outside. Do not tighten the hardware onto the track, as looser pieces will make it easier to hang the doors later. Use a hacksaw to cut the track to fit the closet opening if necessary. Then, use the manufacturer's measurements to position the floor bracket next to the door jamb.
To ensure the doors are plumb when installed, hang a plumb bob from the centre of the track above the floor bracket. Align the pinhole in the bracket front to back and outline the bracket with a pencil to mark its exact location. Screw the bracket in place, then remove the screws and set them aside for now. With the track and bracket in place, you can now move on to installing the bifold door.
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Attaching the doors
First, attach the track to the header of the frame using the mounting hardware. Make sure the track is centred. Then, connect the upper pivot to the pivoting side of the frame opening. This will ensure the door opens in the right direction. Screw the jamb bracket into the bottom corner of the frame, ensuring it is in line with the track.
Next, lay each door panel flat on the ground and push them together. Attach the hinges and mounting plates, ensuring the plates are attached in the direction of the door swing. Now, you're ready to install the bifold door. Your assistant should hold the door upright while you align it with the upper pivots. Lock the door into place and adjust the height using the rotating arm or hinge pin, depending on the type of hardware included with your door.
Finally, install any decorative hardware, such as pulls. To do this, mark a comfortable height on the face of the guide door – centred is usually best for ease of use. Hold the hardware in place and mark the holes, then secure the hardware.
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Adding finishing touches
Painting
Paint your doors to give them a fresh new look. You can use a roller and brush combo to apply primer and paint for a smooth and even finish. Consider using a semi-gloss paint in a colour that complements your space. Don't forget to prime and paint the edges and creases of the doors for a professional finish. If you want to paint your doors, it is recommended to do so before installation.
Hardware
Install decorative hardware, such as pulls or handles, to complement the other doors in your space. Mark a comfortable height on the face of the guide door – centred is usually best for ease of use. Hold the hardware in place, mark the holes, and then secure it with screws. You can also install aligners to help keep the doors closed. Attach them loosely on the back of the doors about 12 inches from the floor, adjust them so the doors snap closed, and then tighten the screws.
Lattice Trim
Add a lattice trim to your doors for a unique and custom look. You can find lattice in a variety of sizes at your local hardware store. Prime and paint the lattice to match your doors, then cut it to size and attach it to your doors.
Track and Brackets
Most plastic folding doors come with the necessary hardware for installation, including the track and brackets. Cut the track to leave a small gap on either end, then centre it on the top of the frame and secure it with screws. Position the floor bracket using a plumb bob to ensure the doors will be plumb when installed, then mark its location and screw it into place.
Hinges
Install the hinges according to the manufacturer's instructions. Mark the inner edge of the door for hinge placement, following the provided measurements. Use a self-centring bit to drill pilot holes, then screw on the hinge plates. Repeat this process for each hinge.
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Frequently asked questions
The first step is to measure the opening framing at multiple points in your closet to account for any irregularities.
After measuring, select a plastic folding door that is wide enough to cover the space and short enough to clear the floor when installed without leaving a major gap.
After purchasing the door, check the diagrams that come with the kit for exact hardware measurements and placements.
To install the track, first fully assemble it by connecting the top and bottom pivots and screwing them into place. Then, attach the track to the header of the frame using the mounting hardware.
Bring the doors to the track and lift the jamb side to hook the pin of the top pivot plate into the pivot socket. Make sure the pin is all the way in, then push the lever on the side of the socket to lock it in place.










































