There are a few characteristics that would prevent the Secret Screen roll-up screen door from working properly:
1) if your door frame does not have a jamb (click here
for Drawing 1);
2) if your doorway is significantly wider at the top or bottom, or otherwise not rectangular;
3) if there is not enough room, at least 1 inch, underneath the top door frame in front of the jamb to install the mounting clips (see Step 1 on Install page
for more info).