Provide the pocket
Width, depth, and length that the specified shade, fascia, and dual bracket actually require — not a generic 6×6 from an old detail.
Recessed pocket line
Provide it. Then verify it.
Most shade problems are construction problems wearing fabric. The pocket line is how we keep them out of the finished room.
Verify it
Before drywall closes in Southern California, we look. If the shade will not fit, or the lid will kiss the hembar, you hear it then.
Wire drop
Low voltage and line voltage are called out with the pocket, so the electrician is not inventing a path on trim day.
Sort the product
The pocket follows the vendor. A Palladiom roller, a dual sheer, a drapery track, and an exterior screen do not share one detail.