Bifold Doors to French Doors: How to Convert Them Yourself

DIY guide · 2 min read · Updated October 2026

Yes. Bifold doors are light, so you can join the panels, hinge them to the frame and add catches. Finish quality is the real work: the joins must be filled, sanded and painted.

The steps below follow two DIY write-ups. They disagree on hinge count, and I note where.

Bifold to French door in six steps: remove the track, pivot and handle; join the panels with glue and pocket screws; fill, sand, prime and paint; hang on hinges; add stops and magnetic catches; finish with dummy knobs — The sequence from closet bifold to hinged pair. Source: Hunker, March 2022.

Table of Contents

Taking it apart and joining the panels

Hunker’s guide starts by removing the handle, then releasing the spring-loaded roller to free the door. Then take out the top track, the bottom pivot cradle and any stop trim.

For a double bifold, remove the hinges between the panels and join the pairs into single panels. Metal plates are quick but visible. Hunker recommends glue and angled pocket screws, hidden and filled, clamped overnight.

Fill gaps and screw holes, sand through 100 and 120 grit, then prime and paint. Hunker favors spray cans over brushing, with a respirator and good ventilation.

White closet doors with round knobs — Plain flush panels take paint well. Photo: Gustavo Galeano Maz on Pexels.

Hinging the doors

Hunker uses two hinges per door, about 12 inches from the top and bottom, and says mortising is not required. It props each door on a 3/4-inch spacer to leave a gap above the floor.

The Bless’er House blog uses four hinges per door, all at the same height on the frame. It also warns to check the swing direction before you fully secure them.

Hinging the doors: two sources, two counts of 2 or 4 hinges per door; prop the door on a 3/4 inch spacer; check the swing direction first; mortising not required — The two guides differ on hinge count. Sources: Hunker, Bless’er House.

Both start from lightweight bifold doors, so two hinges can work. Go to three or four if the pair is heavy or the panels were joined with a lot of filler.

Stops, catches and handles

Nail stop trim to the jamb, leaving a 6-inch gap at the top center for the catches, per Hunker. Fit magnetic catches to hold the doors shut.

For the French door look, use dummy knobs, which need no latch. Hunker does not give a cost, and neither does the other write-up.

My call · James Davis

I would spend the time on the panel joins and the paint, not the hinges. A crooked join or a brush-marked finish is what people see, and a closet pair does not need a lock.