You need to look at your current window and figure out how much of the window cutout you can use for your new bi fold french doors.
Turn a window into a french door.
Because you are almost certainly going to be increasing the width of the opening and very likely raising and lengthening the support header over the window as well you are going to to be above the cost in the referenced comments probably in the 2000.
Dan faires explains why it s better to let a professional install french doors.
Also measure the window s location on the wall compared to where you will place your door.
You will want to measure the height and width.
Installing a french door between a living and dining space creates privacy without the loss of an open feeling for example.
These doors which are constructed with solid framing around a center of glass panes.
The good news about turning a window into a door assuming it s wide enough is that the advanced carpentry required for altering a load bearing wall.