Housing and commercial stock in this stretch mostly went up close to 1958. That's not a guess - it's the age band the buildings here fall into, and it matters for door hardware. Steel rollup doors bolted onto masonry openings from that era have had six decades to let the building settle around them. The opening shifts a fraction, the track stops running true, and the door binds on one side before anyone notices it's not the motor.
The region also sits in a severe cold climate band. On an older commercial door, that shows up as a spring that was tensioned for a lighter door, now working harder in cold steel that's stiffer and less forgiving. Cables fray at the drum faster when the door's fighting friction it shouldn't have. None of this is dramatic - it's slow wear that finally announces itself on the one morning you need the door to open and it doesn't.
We won't tell you every stuck door in South River is the building's age. Plenty are just a worn roller or a photo-eye knocked out of alignment. But when the fault is structural rather than a single part, the building's age is usually why.