What Most People Get Wrong
Most Randolph homeowners think a garage door fails from age alone. On a double-wide door it's usually load, not age. Houses in this area were mostly built between 1938 and 1996, with the median landing around 1964 - and that matters here because the double-car opening on a split-level or raised ranch from that era is a different animal than a single door. A 16-foot-wide door has twice the surface area catching wind as an 8-foot door, but it doesn't have twice the structural backbone unless someone added it later. Builders in the 1960s and 70s ran two or three horizontal struts on a wide door and called it done. That was fine for the wind loads code required then. Nobody retrofits that bracing unless a door gets replaced, so a lot of original or early-replacement doors on these streets are still running factory-minimum reinforcement on an opening that's wider than what the hardware was really sized for. People notice the bowing during a gust and assume it's a spring problem. It's not - it's the panel itself flexing because the center strut isn't holding the line.
What to Check
Stand inside the garage with the door down and look at the horizontal struts - the metal bars running across the inside face of the top two or three panels. On a wide door from the 1960s-70s stock common here, there should be a strut on every panel that spans the full width, end bracket to end bracket. If a strut stops short, or there's visible daylight flex when wind pushes on the door from outside, that's the panel working harder than it should. Check the end stiles too, the vertical pieces where the door meets the track on each side - on an older wide door these take the brunt of the twisting force and they're often the first thing to crack or pull away from the fasteners. Look at the track itself for any sign it's been bowed outward near the bottom rollers; a wide door under wind load pushes sideways, not just inward, and the track takes that load directly. None of this is a five-minute glance from across the garage - you need to actually put a hand on the strut and feel for give.
What Is Going On
Put the two facts together and the picture is straightforward: a housing stock built mostly in the 1960s and 70s across this part of the county means a lot of double-wide garage doors running original or close-to-original reinforcement, and a cold-severe climate band means that reinforcement gets tested harder, more often, than it would somewhere warmer. Neither fact alone explains the bowing, cracked stiles, or binding tracks we see on wide doors in this area - it's the combination. A door that would be fine at 9 feet wide is working at its structural limit at 16 feet, and a cold winter doesn't give that door any slack. One honest limitation: if a wide door's strut system is original to a mid-century build and the panels themselves are warped rather than just the struts bent, reinforcing it isn't a repair worth doing - replacement with a door built for current wind-load bracing standards is the straighter answer at that point.
