1992 construction age factor
Homes here mostly went up around 1992, well past the 1938-2009 range that covers the wider service area, and a good chunk of that older stock dates closer to the 1977 median. That later build date means Bartlett houses were framed for garage doors with steel sectional panels and torsion springs as standard, not the older extension-spring, one-piece slab doors you still find on the earlier side of the territory.