While virtually any Hunter Douglas window fashion can be ordered to cover a French door, keep in mind that the product is typically mounted "outside" of the opening (beyond the glass frame), which may require the use of extension brackets or spacer blocks for proper clearance. French doors are distinguishable because both sides open as opposed to only one. Also note that in most cases a "cut-out" for your French Door window treatment will be required to clear the door handle or knob.
As with all specialty shapes, you should consult with your local Hunter Douglas dealer when deciding which product will work best for your French door application.
Please visit your local dealer for more details.