Draper Elevator Interiors – Since 1996, we have specialized in the ... Custom elevator interiors, elevator cab installation, custom metal fabrication, animal research caging, Draper Elevator Cab Co, Holbrook, MA Since 1996 Draper Elevator Interiors has been specializing in the design, fabrication and installation of custom-tailored elevator cabs and cab interiors. As a family owned and operated business, Draper has set the industry standard for reliability and trust.