Steel gauges for frames



Depending on the application, there are three reasons why you should consider hollow metal frames with heavier gauges:

  • Structural strength: With heavier gauge, the end user gets a longer lifetime for the door opening.

  • Security: A frame with heavier gauge is much more difficult to bend at the strike location.

  • Resistance to dents: A frame with heavier gauge is much more difficult to damage.


The hollow metal frame carries the load of the entire opening. If the gauge of the frame is too light, it may cause door sagging, which will prevent the door from closing properly. For a minimal investment, the end user can get a 14-gauge frame instead of a 16-gauge frame, which represents 25% more steel. In high abuse and high security areas, heavier gauges should be part of the product selection criteria.



Products & Solutions


 
Standard
High Abuse
High Security
Interior Openings
16-gauge
0.056"
1.6 mm
14-gauge
0.071"
2.0 mm
12-gauge
0.105"
2.7 mm
Exterior Openings
16-gauge
0.056"
1.6 mm
14-gauge
0.071"
2.0 mm
12-gauge
0.105"
2.7 mm


NOTE: For quality purpose, de La Fontaine purchases a heavier gauge than what is recommended by the standards.




Reference:

NAAMM HMMA 862: Guide Specifications for Commercial Security of Hollow Metal Doors and Frames.
de La Fontaine: Steel table
© 2010 de la Fontaine