Strong, Sustainable, Stunning
SDI steel doors set the standards - and exceed yours
The Steel Door Institute (SDI) was established in 1954 as a voluntary, unincorporated, non-profit business association whose mission is to promote the use of steel doors and frames in the construction industry.
Representatives of SDI member companies create and publish manufacturing, quality and performance standards and distribute them to licensed architects and construction specifiers at no charge.These documents, collectively referred to as the Fact File, are available on this website as downloadable PDFs or in printed format.
Membership in SDI is open to all American-based companies engaged in the production for sale of swing steel doors and or frames and meeting other criteria. Members agree to establish and abide by SDI manufacturing and quality standards that apply to all doors and frames that they produce.
NEW! Latest Technical Standards Update
ANSI/SDI A250.6-2003 (R2009) - Recommended Practice for Hardware Reinforcing on Standard Steel Doors and Frames (2009 revision) PDF |
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Press Releases
Earn AIA Credit with SDI's
Free Webinar
December 9, 2011 WESTLAKE, Ohio - Steel Door Institute now offers a free and convenient way to earn AIA Sustainable Design hours in 2011. Steel: Green Now, Green Forever - Building with Recycled Materials debuts as a live webinar on December 20th, 2011 from 12:00 p.m. - 1:00 p.m. EST.
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