Builder-grade door construction
These were builder-grade doors - single-layer steel, no foam core, hung on torsion springs rated for the door's weight and not much more. That construction era runs from 1977 through 2009 across the wider service area, and Caldwell's stock sits right in the middle of it, which means the door you're looking at replacing is old enough to have a worn-out bottom seal, a warped panel from two decades of sun and cold, or an opener whose circuit board the manufacturer stopped making parts for years ago.
