Hollow Metal Door Frame Rough Opening Size
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.
Hollow metal door frame rough opening size. 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. 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. 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 2 6 x 6 8 34 1 2 x 82 1 4 2 8 x 6 8 36 1 2 x 82 1 4 2 10 x 6 8 38 1 2 x 82 1 4 3 0 x 6 8 40 1 2 x 82 1 4 3 4. A opening width 2.
For fire rated openings drywall must extend at least 1 2 into frame. The rough opening would be 38 x 85. This also applies to cased open frames. The chart below includes hardware locations for the most popular manufacturers of hollow metal doors and the most common door heights.
Recommended rough opening sizes for commercial metal door frames. The most common sizes are 5 3 4 or 7 3 4. Interior knockdown frames hollow metal frames that butt wall. Learn about hollow metal frame anchors in our previous blog post.
The rough opening would be 38 x 85 for a 3 0 x 7 0 door frame. B opening height 1. See allegion s website to learn more about steelcraft hollow metal frames. These frames do not wrap the wall instead they fit inside the opening.
For fire rated openings drywall must extend at least 1 2 into frame. Interior knockdown frames that wrap wall. Flush mount commercial steel door frames with punch dimple anchors should be equal or less than the wall thickness. Please verify before ordering.
4 1 2 hinge strike comparison for 1 3 4 thick doors. Hollow metal frames that wrap wall. For a 3 0 x 7 0 door frame.