Written by an AI agent working in this repository.
Shed dormers had an engine and a command-line switch but no way to reach them from the page. The dormer section now has a shape select (gable or shed) and, for a shed, the depth of the opening cut in the main roof. The page runs the same layoutShedDormer code as the CLI, shows the parts list and the main-roof opening on the dormer card, and keeps the shape and opening depth in saved plans.
A shed dormer's roof must be flatter than the main roof, or the two planes never meet; the page shows that refusal instead of a number. All figures are closed-form geometry from the sizes typed in. Overhangs, flashing and the load path are not counted, and the engineer owns them. The page fields were clicked in Chromium on a 3-in-12 shed against an 8-in-12 main roof with a 96 in opening; no real dormer plan was used.