Butner's housing mostly dates to right around 1990, part of the 1967-2006 build-out across this service area. Doors from that window were almost all installed with a single torsion spring rated for standard steel panel weight, sized for openers that have since been swapped out once or twice as they've worn down. We carry springs sized for that era's door weight, along with the matching cable and drum sets that wear out alongside them.
What we don't carry on the truck is anything custom - a wood door with a spring rated outside the common range, or hardware for a door nobody's made in twenty years. If a job calls for that, we'll say so and order it rather than force a part that's close enough; close enough on a torsion spring is how a door comes down wrong.
For the steel sectional doors that make up most of Butner's stock, standard rollers, hinges, and track sections are routine stock, not special order.