You may wish to use spring clamps or other means to hold the screen until things get attached.
How to put in a screen door.
Next cut and install the hinge side z bar.
Leave about 4 to wrap around the bar.
Replace your screen door and handle after you install the screen.
Cut most of the screen off neatly.
Fold the bottom edge of the screen around the bar trying to make sure the part above the bar is taut.
Also called the drip cap this part is put in above the door frame to stop rain.
Place the frames of the dog door together on each side of the screen.
When the frames align and are ready to be fixed together get a screwdriver and fit them together.
Put the z bar against the opening on the hinge side of the door.
To install a screen door start by asking a friend to hold the door in the door frame so the screen door s handle is on the same side as the main door s handle.
Then tilt the screen door until it is straight and slide it into place.
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With a bit of maneuvering you can easily put the door back on.
To put the screen back in place lift it up with both hands and line up the bottom with the door track.
Hold the door by the sides of the frame with both hands keeping the top of screen door parallel to the glass door.
The screen door must be placed outside the sliding glass doors.
In some cases you will also have to drill at the sides so the dog door can fit firmly in the screen door.
Then using a hinge as a template drill pilot holes for the 3 hinges which will go on the opposite side of the door as the handle.
Attach it with a screw on the hinge side of the rain cap.
Mark the top with tape.
Follow the instructions and screw the frames together as one.
If you removed the door handle screw it back into place with a flathead screwdriver.
Measure the height of the door opening.
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This video shows you how to replace the screen in a screen door.