Superior Steel Door & Trim

Who We Are

Superior Steel Door & Trim is the premier designer, manufacturer and installer of ADANLOCK™ custom architectural walls, built to satisfy the needs and desires of discriminating architects and interior designers worldwide.

ADANLOCK™ offers flexibility by design and materials in a variety of combinations to suit any office interior. Quality, Service and Value can be expected on every ADANLOCK™ Project.

Architecture and design communities know by reputation that ADANLOCK™ is committed to creating “signature” office environments. ADANLOCK™ products are engineered to meet the demands of functionality as well as for outstanding interior design and superior cost benefit.

A benchmark for quality in today’s marketplace, our stringent Q/C procedures assure customer satisfaction from the finest workmanship and materials available today. From standard wall systems to custom applications, ADANLOCK™ architectural walls and architectural specialty metals add visual excitement to any office environment.

Contact Superior Steel Door & Trim Co., Inc. about specific project requirements that you may have. We can provide you with a competitive quote for your project needs.


In 1958, an engineer developed an innovative modular office system that was attractive, utilitarian and cost effective. These systems were marketed by Art Metal, Inc. until 1990, when Andrew Connell purchased the assets of ADANLOCK™ and manufactured the product line from his newly acquired plant in Jamestown, NY.

The 121,000 s.f. manufacturing facility has ample capacity and equipment for producing ADANLOCK™ system products, architectural metals and high-end integrated products.

Our production team excels in producing the ADANLOCK™ system product line and architectural metals for the discriminating architect.

ADANLOCK™ partition systems are made in the USA by American workers using American made materials.