Wood Frames

Fire-rated & Non-rated Choices

Maiman offers a complete line of non-rated and fire-rated wood frames to complement our doors. Choose a non-rated, 20-minute, or a 45/60/90 minute fire rated door frame (positive or neutral pressure) for your project needs.

Like our doors, the non-rated and fire-rated door frames have the same aesthetic appearance. You can also select your door jambs to match your door species or to provide contrast.

NOTE: when ordering jambs with fire-rated doors, the jamb fire rating must meet or exceed the door’s fire rating.

We offer both flat jambs and rabbeted jambs. However, we highly recommend flat jambs because of internal stability and superior veneer face materials. 

Frame Specifications

Frames (Flat – Neutral Pressure)

Description20 Min*45-Min**60-Min**90-Min**
Max single frame size4′ x 9′4′ x 9′4′ x 9′4′ x 8′
Max paired frame size8′ x 9′8′ x 9′8′ x 9′8′ x 8′
Min frame depth3 3/4″4 5/8″4 5/8″4 7/8″
Wood speciesW. Pine or denserAnyAnyAny
Min stop height5/8″5/8″5/8″5/8″
Min stop width1 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 casingAnyAnyAnyAny
4-sided Sidelite frames3′ x 9′N/AN/AN/A
4-sided Transom frames8′ x 3′N/AN/AN/A
Borrowed Sidelite frames1’6″ x 7′N/AN/AN/A
Borrowed Transom framesN/AN/AN/AN/A
* U.L. Rating for 20-minute jamb
**Warnock-Hersey Rating for 45-60-90 minute jamb

Frames (Flat – Positive Pressure)***

Description20 Min*45-Min**60-Min**90-Min**
Max single frame size4′ x 9′4′ x 9′4′ x 9′4′ x 8′
Max paired frame size8′ x 9′8′ x 9′8′ x 9′N/A
Min frame depth3 3/4″4 5/8″4 5/8″4 7/8″
Wood speciesW. Pine or denserAnyAnyAny
Min stop height5/8″5/8″5/8″5/8″
Min stop width1 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 casingAnyAnyAnyAny
4-sided Sidelite frames3′ x 9′N/AN/AN/A
4-sided Transom frames8′ x 3′N/AN/AN/A
Borrowed Sidelite frames1’6″ x 7′N/AN/AN/A
Borrowed Transom framesN/AN/AN/AN/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