Every residential elevator involves two door systems that have to work together: landing doors, fixed at each floor and locked when the cab isn’t present, and car doors, which travel with the cab and secure the interior during operation. Both need to be compatible with the elevator model, hoistway dimensions, and Tennessee or Alabama code requirements before any framing begins. A compatibility issue discovered after walls are up means field modifications to the cab frame or hoistway header. HomeLift works through residential elevator door selection with architects, builders, and homeowners before framing starts so that problem doesn’t come up.