ASTM E-119 is a test standard for walls, partitions and floor or roof systems:
This test standard is also used for ceramic type glasses when used as window wall and/or borrowed light frames.
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Steelcraft does not manufacture 12 gage closed section mullions. The maximum is 14 gauge.
Steelcraft can provide the outer perimeter (open sections only) of a transom frame in 12 gage material. ...
CAD drawings are available for doors and frames in 3 drawing formats:
Autocad (.dwg) - Release 12
Encapsulated PostScript (.eps)
Data Exchange (.dxf)
Drawings are available on the...
1 3/4" is the standard door thickness.
Steelcraft only makes a nominal 1 3/4" thick door. A 1 3/8" was made for light duty commercial applications but that product was discontinued in 1999.