North Carolina is three distinct markets divided by elevation and climate. The mountain west — Asheville, Hendersonville, Boone, Waynesville, Brevard — is dominated by 1920s-1940s craftsman bungalows on sloped lots with exterior entries requiring 6 to 14 stone or concrete steps up from the street. The Piedmont — Charlotte, Raleigh, Greensboro, Winston-Salem, Durham — is mostly post-war ranches with split-foyer entries and 1990s-2000s two-story colonials with straight 13-15 tread main flights. The coastal plain — Wilmington, New Bern, Jacksonville, the Outer Banks — is raised-stilt beach cottages with exterior stairs that are fully exposed to hurricane-force winds and salt spray.
The single biggest NC-specific issue is hurricane exposure. From Wilmington down through Southport, Oak Island, Bald Head Island, and up the Outer Banks from Hatteras to Corolla, any outdoor stairlift has to survive named storms — Category 2 to 4 winds up to 140 mph, 12 inches of rain in 24 hours, and storm-surge saltwater. A standard outdoor stairlift rail uses 3/8-inch expansion anchors rated to 80 mph wind load. Our coastal NC install spec uses 1/2-inch chemical-set anchors with hurricane-rated pullout ratings and a removable seat assembly so the seat can be brought indoors before a named storm makes landfall. That's standard, not an upcharge.
The western NC mountain craftsman is the opposite problem. These homes were built 80-100 years ago before uniform stair codes, so tread depth varies from 9 to 12 inches and riser height from 6.5 to 8.5 inches within the same staircase. A standard straight rail won't bolt flat. We pre-measure with a laser level on the first visit and custom-drill mounting plates on the truck before installation.
Built for the North Carolina climate
NC climate splits three ways. The Outer Banks and coastal plain get hurricane-force winds (Hurricane Florence, 2018 — 140 mph), 12+ inches of rain per storm, storm-surge flooding, and year-round salt spray. Any install east of I-95 gets hurricane-rated 1/2-inch chemical-set anchors, marine-grade epoxy rail coating, 316-stainless fasteners, and a removable seat assembly. The Piedmont gets hot humid summers (90°F+ with 80% humidity June-September), which kills unsealed motor housings — we spec IP54-rated sealed motors standard statewide. The mountains get surprising cold — Boone hit -5°F in 2018 — so any install west of Asheville gets the cold-weather battery variant rated to -10°F.