PANEL LAYOUT AND ATTACHMENTS / FIELD NOTE 19
Joint Width Along a Double-Curved Surface
A joint that looks uniform in a front view may vary when measured in the local panel plane. The drawing needs to say which gap dimension controls installation and appearance.
What to check on your project
Show dimensioned sections at representative and critical locations. Define the measurement direction, accepted variation and installation reference. Review movement and tolerance with the responsible design team before locking the nominal gap.