Balcony and stair railings hold weight
What Trang looks for
Leaned on with real weight, not looked at. A railing either holds or it fails.
Where it happens
Balcony, stairs. On an example flat: Balcony.
Why it matters
A failure here is not fixed and reinspected. It is a refusal to list. There is no version of a listing worth a balcony that gives way.