The heft of the doors is what keeps them from shuddering when you open them. So it's best to look for solidcore or solidwood doors, which will feel more substantial than hollowcore doors. (Solid doors are also easier to trim if any part of your door opening is out of square.) Then, in order to handle the weight of these heavier doors, you'll need a track that includes a wheeled mechanism, which allows the doors to glide smoothly rather than shimmy along the track.
The most difficult—and sometimes most frustrating—part of the installation is attaching and adjusting all the hardware. The track, the pivots, the hinges all have to be assembled just so, and it's worth taking the time to doublecheck every measurement and position to be sure each piece is in the right place and facing the right way.
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for drilling pilot holes for hinge screws
for trimming track to fit opening
for aligning hardware above and below door
for reaching into tight spaces with drill
for cutting finish trim that hides the track
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.