Please see the video of how to measure for your screen opening for a perfect fitting Zipper Flap or give us a call and let us help.
Zipper Flaps are very strong and durable, double stitched with life-time thread and a Marine zipper you can rest assured their made for the elements. Zipper Flaps are built to last.
If you're a handy person around the house and have rolled in a piece of screen in the past, then you can do it. Zipper Flaps install just like a regular piece of screen.
It depends on the cage. You'll need to use a flat spline. Most always 310 spline is fine but some cages will require 315 splines.
If you feel like the spline is not holding well enough then 315 may be needed.
Home Depot, Lowes, Most any hardware store that carries screen will carry spline also.