Most of the commercial stock around here went up close to 1993, which puts a lot of original torsion springs, rollers, and track hardware at roughly thirty years of service on doors that see heavier daily cycles than a house garage ever would. Commercial bays open and close far more often - deliveries, shift changes, equipment moves - and that cycle count adds up faster than the calendar suggests. Layer on a severe heat climate and you get galvanized cable and spring coating breaking down years ahead of a mild-climate schedule, plus nylon rollers going brittle and cracking instead of just wearing round. None of that is unique to one building; it's what a 1990s-era commercial door in this heat band does after three decades, whether it's a self-storage facility, an auto shop, or a strip retail bay.