Narrow 1965-era openings
What we can tell you is what moves the number here specifically: Deephaven's housing stock centers on 1965, inside the broader 1957-2005 range across the service area, so a lot of the openings we measure are narrower than what newer construction elsewhere gets. A narrower opening on an older header sometimes needs extra framing work before the new door goes in, and that's a labor line most online quote tools never see coming.

