{
  "riser_sums": "pass",
  "clear_width_and_guard_reserve": "pass",
  "gallery_and_front_route": "pass",
  "doors_clear_of_void": "pass",
  "chimney_clear_of_gallery": "pass",
  "stacked_flight_sample_min_headroom_m": 2.554,
  "assumed_stair_structure_m": 0.22,
  "opening_area_m2": 6.728,
  "headroom_scope": "shared flight geometry; floor-edge clearances, final stringers, beams and roof require final model"
}