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Steel Door Institute, Steel Door, Fire Rated Doors, Hollow Metal Door

Strong, Sustainable, Stunning

SDI sets the standards - and exceeds yours

The Steel Door Institute (SDI) was established in 1954 as a voluntary, non-profit business association that develops quality and performance standards for steel doors and frames.

Representatives of SDI member companies create and publish these standards, which are made available without charge to architects and other design professionals to ensure quality and consistency of hollow metal doors and frames used in construction.

As a complete hollow metal door and frame resource, the SDI website provides all standards, an extensive set of Frequently Asked Questions, and a Gallery of Products. SDI also offers online education for AIA and GBCI credit.

SDI members are steel door and frame manufacturers who have passed an on-site audit from hollow metal door and frame engineers. When you specify an SDI door you can be assured you will receive a product that is well-constructed, tested, and evaluated to meet your specifications.

 

Why Specify SDI Members?

They are the only manufacturers who have been audited to ensure their products and processes meet SDI's rigurous ANSI standards.

Some manufacturers claim to meet our standards; only SDI members have proved it.

Choose quality. Specify SDI members.




VIDEOS

The Steel Door Institute

This video introduces the Steel Door Institute and the benefits of specifying SDI.

VIEW ALL SDI VIDEOS >>