Frame Specifications
Frames (Flat - Neutral Pressure)
| Description |
20 Min* |
45-Min** |
60-Min** |
90-Min** |
| Max single frame size |
4' x 9' |
4' x 9' |
4' x 9' |
4' x 8' |
| Max paired frame size |
8' x 9' |
8' x 9' |
8' x 9' |
8' x 8' |
| Min frame depth |
3 3/4" |
4 5/8" |
4 5/8" |
4 7/8" |
| Wood species |
W. Pine or denser |
Any |
Any |
Any |
| Min stop height |
5/8" |
5/8" |
5/8" |
5/8" |
| Min stop width |
1 1/2" |
1" |
1" |
1" |
| Min casing size (width) |
1 7/8" |
1 5/8" |
1 5/8" |
1 5/8" |
| Min casing size (at shim) |
3/8" |
5/16" |
5/16" |
5/16" |
| Wood species of casing |
Any |
Any |
Any |
Any |
| 4-sided Sidelite frames |
3' x 9' |
N/A |
N/A |
N/A |
| 4-sided Transom frames |
8' x 3' |
N/A |
N/A |
N/A |
| Borrowed Sidelite frames |
1'6" x 7' |
N/A |
N/A |
N/A |
| Borrowed Transom frames |
N/A |
N/A |
N/A |
N/A |
* U.L. Rating for 20-minute jamb
**Warnock-Hersey Rating for 45-60-90 minute jamb
Frames (Flat - Positve Pressure)***
| Description |
20 Min* |
45-Min** |
60-Min** |
90-Min** |
| Max single frame size |
4' x 9' |
4' x 9' |
4' x 9' |
4' x 8' |
| Max paired frame size |
8' x 9' |
8' x 9' |
8' x 9' |
N/A |
| Min frame depth |
3 3/4" |
4 5/8" |
4 5/8" |
4 7/8" |
| Wood species |
W. Pine or denser |
Any |
Any |
Any |
| Min stop height |
5/8" |
5/8" |
5/8" |
5/8" |
| Min stop width |
1 1/2" |
1 1/2" |
1 1/2" |
1 1/2" |
| Min casing size (width) |
1 7/8" |
1 5/8" |
1 5/8" |
1 5/8" |
| Min casing size (at shim) |
3/8" |
5/16" |
5/16" |
5/16" |
| Wood species of casing |
Any |
Any |
Any |
Any |
| 4-sided Sidelite frames |
3' x 9' |
N/A |
N/A |
N/A |
| 4-sided Transom frames |
8' x 3' |
N/A |
N/A |
N/A |
| Borrowed Sidelite frames |
1'6" x 7' |
N/A |
N/A |
N/A |
| Borrowed Transom frames |
N/A |
N/A |
N/A |
N/A |
* U.L. Rating for 20-minute jamb
** Warnock-Hersey Rating for 45-60-90 minute jamb
***3 Positive Pressure options: (1) concealed in frame, (2) applied to frame, (3) category A door