Measure the space before you go shopping. Standard doors are 80" tall & your closet opening may be smaller than that.
A door probably can be sized to fit if the opening is not exactly standard. In situations where you need something special, we can make a custom door especially to fit the unique closet space you have!
Measure horizontally across both the top and bottom of the opening, as well as vertically on each side in order to determine what size door to use. (See attached illustration)