How to Install Bifold Doors

Unfold the possibilities

Kitchen with folding patio doors
Photo: Image Source / Getty Images
Kitchen with folding patio doors
Photo: Image Source / Getty Images
Xiao Faria daCunha
Written by Xiao Faria daCunha
Contributing Writer
Updated May 21, 2025
SKILL LEVEL
Intermediate
COMPLETION TIME
120 minutes
COST
$100–$500
Get quotes from up to 3 pros!
Enter a zip below and get matched to top-rated pros near you.
Geo Icon
What you'll need:
TOOLS
  • Drill
  • Drill bits
  • Hacksaw
  • Level
  • Hammer
SUPPLIES
  • Bifold doors
  • Door track kit
  • Door hardware
  • Pencil

Bifold doors are space-effective as they open and close like accordions. Because they fold into a double stack when fully opened and take up barely any room, they are one of the most popular types of closet doors. Additionally, bifold doors can also be used on a pantry, in your dining room, or even as patio doors leading to your back porch. If you are looking to install bifold doors yourself, follow the steps in this guide to ensure proper installation.

Read more

Prepping to Install Bifold Doors

Start by completely removing the old door and hardware. Then, measure your door and frame so you know what size of bifold doors to get. You should also check the threshold and jambs and make adjustments if needed, so they are level. You can also choose to repair the door frame by filling in old screw holes.

Next, go find your preferred bifold doors from your local hardware store. Thoroughly read through the installation manual and get to know the different parts included in the kit. Most kits come with a set of pivot brackets, the top and bottom pivot, the bifold door track, jamb brackets, a spring snugger, and a set of screws in various lengths.

  1. Install the Tracks

    Using a hacksaw, cut the top track to leave a 1/6-inch gap on each end. Center the track on top of the frame with the pivot bracket facing the jamb. Then, center the jamb bracket on the floor. Make sure the bottom track is level to the floor and drill pilot holes. Fasten the bracket to the jamb with the screws that came with your bifold door.

  2. Paint the Door

    If you want to paint the doors, now is the best time to do so. Allow the door to fully dry before mounting it onto the frame. Be careful not to paint over predrilled holes. If you are okay with the door’s original color, skip this step.

  3. Install Hardware

    Door hinges attached to wooden door
    Photo: ICKEDA / iStock / Getty Images

    Once the door is fully dried, gently tap the pivots into the holes at the top and bottom of the door using a hammer. Lay each door panel on the floor next to each other and push them together. Attach the hinges and mounting plates. Note that mounting plates should be installed in the same direction as the door’s swing.

  4. Hang the Door

    White folding door opening on minimalist wooden living room
    Photo: ArchViz / iStock / Getty Images

    Lift the door and hold it upright. You might want a helper for this step to ensure safety. Align the top pivots with the top brackets and push them in. Place the bottom pivots on the jamb brackets. Test open and close the bifold doors a few times. If the door touches the floor or the jamb, lift the door and turn the bottom pivot accordingly to increase the height.

  5. Install Knobs or Handles

    Finally, install door handles, levers, or knobs to your bifold doors following the manufacturer’s instructions. Some bifold doors come with aligners. Screw them to the back of the door: they will help keep the doors closed.

DIY vs. Hiring a Pro

Most bifold doors in the market come with all necessary hardware and are designed for easy installation. However, bifold doors can be heavy, and any misalignment would prevent the doors from functioning properly. If you’ve never installed bifold doors before, it’s best to hire a local door installer. Door installation costs $40 to $90 per hour for the labor, and the final price depends on the design, material, and type of doors.

Similarly, you should hire a pro to install exterior bi-fold doors because they require additional insulation and protection to ensure your home’s safety. Folding patio door installation costs $3,550 to $15,000 on average. 

Frequently Asked Questions

Measure the opening, secure the top track, attach the jamb brackets to the bottom of the frame, connect the bifold doors, tap in pivots, insert doors into the track, adjust door height, then attach door knobs and other hardware. If you want to paint your door, make sure you do that before mounting the door onto the frame.

Check the package of your bifold door. The width shown is half an inch larger than the bifold set. This allows at least 1/4 inch between the side jamb and pivot. When installing the top track, saw the track down to leave approximately 1/6 inch on each end. This will ensure your bifold door folds and unfolds smoothly without getting stuck in the frame.

Need professional help with your project?
Get quotes from top-rated pros.
Learn more about our contributor
Xiao Faria daCunha
Written by Xiao Faria daCunha
Contributing Writer
Xiao is a full-time writer giving advice and tips on improving living spaces so it functions as a peaceful sanctuary and an efficient factory. She is visual artist with substantial woodshop experience and isn’t afraid to pick up a circular saw. She is also a volunteer builder for Kansas City’s Habitat of Humanity.

The homeowners guide to door services

From average costs to expert advice, get all the answers you need to get your job done.

See all articles