The first dimension is the jamb depth which is the overall frame size.
Hollow metal door frames standard sizes.
Commercial hollow metal door frames welded or knocked down for new or existing drywall block masonry walls.
Sdi 134 2014 glossary of terms for hollow metal doors and frames.
Hollow metal doors are made of channel reinforced steel sheets and filled with insulation materials such as polystyrene kraft honeycomb or polyurethane.
Jamb depths are available from 3 to 20 under 4 3 4 jamb depth will be a single rabbet frame.
Sdi 124 2016 maintenance of standard steel doors and frames.
Fire labeling available is 45 min 90 min and 3 hours some restrictions do apply.
Note that all the frames have a 1 2 backbend except for the 5 3 4 frame which has 7 16 backbends.
Hollow metal door frames are available with a wide range of anchoring options to accommodate varying wall conditions and can be used with steel doors or commercial wood doors.
The gray primer finish is suitable for painting.
Our frames are standard at 16 gauge a40 galv steel.
Standard metal doors are 1 3 4 thick and are prime coat painted.
Sdi 117 2013 manufacturing tolerances for standard steel doors and frames.
Standard hollow metal door frames are constructed from 16 gauge roll form steel but can also be manufactured in 14 gauge or 12 gauge metal thicknesses.