Hollow Metal Frame Jamb Depths
Drywall Frames
5-5/8″ Jamb Depth
(4-5/8″ Wall Thickness)
5-7/8″ Jamb Depth
(4-7/8″ Wall Thickness)
7-1/8″ Jamb Depth
(6-1/8″ Wall Thickness)
8-1/4″ Jamb Depth
(7-1/4″ Wall Thickness)
Measure the overall wall thickness and add 1″ to determine jamb depth
Wall Thickness (throat size) + 1/2″ Return + 1/2″ Return = Jamb Depth
| Stud Type |
Stud Size
|
Drywall on each side | Wall Thickness (Throat Size) | Jamb Depth (Profile) |
| Wood |
2" x 4″(3-1/2")
|
5/8" | 3-1/2" + 1-1/4" = 4-3/4" | 5-7/8" |
| Wood |
2" x 4″(3-1/2")
|
1/2" | 3-1/2" + 1" = 4-1/2" | 5-1/2"* |
| Wood |
2" x 6″(5-1/2")
|
5/8" | 5-1/2″+ 1-1/4" = 6-3/4" | 7-3/4" |
| Wood |
2" x 6″(5-1/2")
|
1/2" | 5-1/2" + 1" = 6-1/2" | 7-1/2"* |
| Steel |
2" x 3″(2-1/2")
|
5/8" | 2-1/2" + 1-1/4" = 3-3/4" | 4-3/4" |
| Steel |
2" x 3″(2-1/2")
|
1/2" | 2-1/2" + 1" = 3-1/2" | 4-1/2"* |
| Steel |
2" x 4″(3-5/8")
|
5/8" | 3-5/8" + 1-1/4" = 4-7/8" | 5-7/8" |
| Steel |
2" x 4″(3-5/8")
|
1/2" | 3-5/8" + 1" = 4-5/8" | 5-5/8" |
| Steel |
2" x 4″(3-5/8")
|
5/8" (2 Layers) | 3-5/8" + 2-1/2" = 6-1/8" | 7-1/8" |
| Steel |
6"
|
5/8" | 6" + 1-1/4" = 7-1/4" | 8-1/4" |
| Steel |
6""
|
5/8" (2 Layers) | 6" + 2-1/2" = 8-1/2" | 9-1/2"* |
| Steel |
8"
|
5/8" | 8" + 1-1/4" = 9-1/4" | 10-1/4"* |
Masonry Frames
4-3/4″ (3-3/4″ Throat)
5-3/4″ (4-7/8″ Throat)
6-3/4″ (5-3/4″ Throat)
7-3/4″ (6-3/4″ Throat)
8-1/4″ (7-1/4″ Throat)
8-3/4″ (7-3/4″ Throat)