Two things drive most installation calls in this area: the age of the housing and the winters. Houses built in the 1960s and 70s across the four main sections of town were framed with door openings and headers sized for the lighter, single-layer doors common then. Insulated steel doors weigh more and need properly rated track and springs to match, which older headers weren't always built to carry without reinforcement. On top of that, Minot sits in a severe cold climate band, and a door that isn't sealed and balanced right will let cold air sit against the header and framing all winter, which speeds up wear on hardware that's already pushing fifty years old. We see this most in homes that never replaced the original door - the opening is sound, but the door and hardware on it predate every modern seal and insulation standard.