About Us

Duvinage is the leading manufacturer of custom metal stairs since 1895. The company was founded by Pierre Duvinage, who patented the first spiral metal staircase in the United States. From spiral stairs to straight egress stairs to the most sophisticated circular stairs in the world, we fabricate stairs that are renowned for architectural integrity and superior engineering.

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.

Interested in seeing how we do it? Science Channel's How It's Made featured Duvinage in a 2019 episode as skilled craftsmen fabricated a Duvinage custom steel spiral stair with wood treads and handrail.

A Key Bridge Company

Duvinage is a proud member of the Key Bridge family of companies. Key Bridge Partners is a private company consisting of world-class manufacturing and service companies.

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