Recommended rough opening sizes for commercial metal door frames hollow metal frames that wrap wall interior knockdown frames hollow metal frames that butt wall block or exterior wood stud nominal door size recommended opening 2 0 x 6 8 28 1 2 x 82 1 4 2 4 x 6 8 32 1 2 x 82 1 4.
Hollow metal door frame rough opening size.
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.
See allegion s website to learn more about steelcraft hollow metal frames.
Framing rough opening sizes are really quite simple.
Using a 3068 door as an example the rough opening size for a welded frame would be 3 4 1 4 x 6 10 1 4.
Just add 2 to the width of the actual door size.
For a 3070 single door the frame s rough opening would be 37 1 2 x 84 1 2 four sided borrowed light is frame opening order size rabbet to rabbet plus 2 3 4 1 4 both width and height.
Knock down masonry drywall and multi use frames are available from curries in series profile face dimensions gauges and door opening sizes to fit most any need in the construction industry today.
Interior knockdown frames that wrap wall a opening width 2 b opening height 1 the rough opening would be 38 x 85 for a 3 0 x 7 0 door frame.
Welded hollow metal frame with sidelite opening add 4 1 2 to the width plus 2 mullion.
We always provide this rough opening guide with our submittals.
This will give you room to space the door frame off of the sub.
Add 3 1 4 to the door height.
Welded hollow metal pocket door frame opening the width is to be calculated by door width x 2 2 1 4.
Since the standard face on a hollow metal frame is 2 the outside dimensions of a 3068 welded frame will be 3 4 x 6 10 so this ro dimension will give you 1 4 of play.
This also applies to cased open frames.
Add 2 1 4 to the height.
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.