This was the entry door between the house and garage before the screen was installed.
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Note how the edge of the threshold is just about flush with the “nosing” below it.
Not every door will be built this way.
This is the normal method of installing the bottom track… but this also creates a tripping hazard, which I’d like to avoid. I would like to install the screen so the bottom track looks like this: The top of the track being flush with the threshold. But this will require an extra piece of wood to support the track. The instruction manual describes measuring from the sill (a.k.a. threshold) to the brick molding on top of the door. But I’m planning a different approach, so I’ll need to measure differently.

I removed the pull bar from the cassette.
The instructions seem to indicate that the pull bar can be cut at the same time as the cassette, but I know that such a loose piece will flop around like crazy in the miter saw.
I set the screen cassette in place on the right-hand side of the door (it can go on either side).
But… there was a problem.
The mounting brackets (red arrow) don’t take into consideration the shape of the brick molding. These brackets would work just fine on a flat surface, but almost all entry doors come with a brick molding that has a contour.
That straight red line above the arrow represents the proper orientation of the L-shaped bracket. With the contours of the brick molding, the bracket sits on quite an angle, and the screen cassette seems too loose. This is sloppy engineering.
The completed retractable screen.
While this was a real chore to figure out the instructions, once it was finished it was definitely worth it.
Note how the ends of the pull bar are concealed within the top and bottom tracks.
I could see a problem developing if a lot of dirt gets in the bottom track. It may need to be vacuumed out occasionally to keep the pull bar from dragging in dirt.
When the screen is retracted, it stays out of the way.
You can hardly see the thing when the screen is opened.



























