I recently needed to refer to a copy of HMMA-850, the NAAMM/HMMA standard for fire rated doors and frames.  I was pleasantly surprised to find this standard on-line as a free download.  Upon further digging, I found that almost ALL of the HMMA and SDI publications can be downloaded for free from their websites.  There is a wealth of information there, including free downloadable specifications and ANSI standards.  If you’re an architect or specwriter, you can even request a complimentary bound copy (or CD) of the SDI Fact File which includes all of their publications.  Click the links below to check out the list of standards available for download.

HMMA – Hollow Metal Manufacturers Association, div. of NAAMM

SDI – Steel Door Institute

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