B opening height 1.
Hollow metal door frame rough opening size.
Flush mount commercial steel door frames with punch dimple anchors should be equal or less than the wall thickness.
See allegion s website to learn more about steelcraft hollow metal frames.
The chart below includes hardware locations for the most popular manufacturers of hollow metal doors and the most common door heights.
Rough opening guide for knockdown drywall frames overall frame size 2 on width 1 height varying face dimensions will not change rough opening sizes in most applications.
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.
The most common sizes are 5 3 4 or 7 3 4.
Learn about hollow metal frame anchors in our previous blog post.
These frames do not wrap the wall instead they fit inside the opening.
For a 3 0 x 7 0 door frame.
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.
A opening width 2.
The rough opening would be 38 x 85 for a 3 0 x 7 0 door frame.
Recommended rough opening sizes for commercial metal door frames.
Interior knockdown frames that wrap wall.
4 1 2 hinge strike comparison for 1 3 4 thick doors.
For fire rated openings drywall must extend at least 1 2 into frame.
Hollow metal frames that wrap wall.
This also applies to cased open frames.
Please verify before ordering.
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.
When replacing a hollow metal door on an existing steel door frame precise measurements are needed to ensure that the new door will fit properly.
The rough opening would be 38 x 85.
Interior knockdown frames hollow metal frames that butt wall.