Dog went through the previous net like it was not there. I delayed replacing it, because I expected the story will keep repeating itself. So the screen stayed out of the way, unused, with a planter hiding the hole. Many years, a hoe renovation and a new dog who is no longer a puppy later, I decided to give this a try again, motivated by spectacular storms I wanted to experience with an open door, without letting the cat outside. This operation took only maybe 1h, from removing the door to replacing and enjoying it. The cat did try to dig claws in -- nothing broke, but we did move his cat tree elsewhere. Dog respects the boundary. The screen is practically invisible. And I get to enjoy the rain!Practical matters: the roll fits multiple full screen doors, but you need to check the width to make sure you have the right size. I used a metal spline tool -- I would recommend the plastic one. I felt it was too sharp around a screen this delicate. Also, use a thicker spline than the original if you are replacing a thicker screen. Finally, keep the extras for when your dog goes chasing squirrels through the screen. Sooner or later we will need to replace this again... Now I know what a simple operation this is!