Established in 1895, Duvinage has been manufacturing custom metal stairs for over a century. From spiral stairs to straight egress stairs to the most sophisticated circular stairs in the world, Duvinage and Sharon Stairs are specified in residential, commercial, and industrial projects nationwide. Duvinage, complete with its Sharon Stairs division, is the only American company capable of engineering and fabricating every type of metal stair, providing a single point of contact for architects, general contractors, and miscellaneous metal subcontractors.