Most defects aren't caught by quality control. They're caught by the person living with the result — the drawer that doesn't close right, the panel that traps moisture, the staircase that's technically fine but unpleasant to use every single day. By the time it's visible, it's already expensive to fix.
Fulhaus treats engineering as the discipline of finding that failure mode before it's built, not after it fails. That means asking what a design does to moisture, movement, maintenance access, and the people who'll actually use it — years before the finish is even chosen.