Step 2: Attach the track hardware

Attaching the track hardware.
Photo: Kolin Smith
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Fasten the pivot plates (the pins that fit into the track and the floor bracket), and the locking arms (the hooks that slide along the track) to the top and bottom of each set of doors. The pivot plates go on the tops and bottoms of the jamb–side doors, and the locking arm on the tops of the leading doors.

Each kit requires its hardware to be uniquely positioned, so check the diagrams that come with yours for exact measurements and placements. These will tell you, for example, not only how far a pivot plate should be from the door edges around it but also where its pin should be in relation to the door's edges. Adhering to all the given dimensions ensures that no piece goes on backward.
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    Tools List

    • combination square
      Combination square
    • drill
      Drill
    • self-centering bit
      Centering bit,
      for drilling pilot holes for hinge screws
    • hack saw
      Hacksaw,
      for trimming track to fit opening
    • plumb bob
      Plumb bob,
      for aligning hardware above and below door
    • extender flexible bit
      Bit extender,
      for reaching into tight spaces with drill
    • hand saw
      Handsaw,
      for cutting finish trim that hides the track

    Shopping List

    1. DOORS

    Bifold doors are available for sale, but custom-ordered doors can also be assembled into folding doors, as long as they're resized to fit your needs. [BR]When measuring the closet opening, account for a small gap around and between the doors. [BR]Measure the horizontal opening of your doors, subtract 13/16 inch, and divide by 4 to get the individual door width. Measure vertically and subtract 2 and 7/8 inches to get its height.



    2. TRACK HARDWARE

    The hardware that comes with bifold-door set can be flimsy. We've found its often best to order separate hardware[EMDASH]a kit that includes the track, the hinges, and all the pins and pivot plates[EMDASH]for a smoother, longer-lasting operation. A couple of companies, like Johnson, offer heavy-duty tracks that make the doors glide smoothly.



    3. DOOR PULLS

    Smaller cabinet knobs will get lost on a larger door, so look for "wardrobe knobs" or any knob that is 1 and 3/4 inches or bigger in diameter.



    4. 1x2 FINISH-GRADE FLAT STOCK

    You'll need just one piece to create a valance under the header to hide the track.



    5. 21/2-INCH TRIM SCREWS

    For attaching the 1x2 stock.