"When a deck is showing signs of wear and tear, you should look for any rusting of metal components. This isn't only an appearance issue but, also a safety warning. The structural components of the deck could be unsafe and could cause a total collapse of the deck floor. Steel nails that are used in deck construction are coated with a layer of zinc that protects the steel from airborne ocean water salts. Over time the zinc layer is worn down by the corrosion process. Once the zinc layer is gone, bare steel is exposed to sea salts that rapidly destroy the structural strength of the nail connections, making deck components dangerous for occupant use."
only a slight twitch?
Dem Ingeniör ist nichts zu schwör.
I realize that's it's unlikely to collapse right that second but I still wouldn't stand that close to a masonry wall with that much of a lean...