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Commercial Steel Door Frames
Frames are manufactured to accommodate any wall condition, including masonry, steel, and wood stud. A wide variety of frame anchors are available.
- Stock Single Widths: 2’0″ to 4’0″ – Heights: 6’8″ to 8’0″
- Available KD (3-Piece Knock Down) or WGS (Assembled, Welded and Ground Smooth)
- Manufactured from Cold Rolled Steel (Galvanized Available)
- 16 Gauge Steel Standard (14 and 12 Gauge Available)
- Exact Fit Mitered Corners
- Fire-Rated- 20-Minute to 3-Hour (UL or Warnock Hersey Intertek Label)
- 4-3/4″ to 9-1/2″ Jamb Depths Standard (Custom Depths Available)
- Factory Applied Baked-On Rust Inhibiting Primer
- All Frames Made in the USA
Trudoor is an authorized WHI fire-labeled shop (Warnock Hersey / Intertek), enabling us to modify, re-certify and label fire-rated doors and frames.
Frames available with hardware prep locations from all manufacturers, including: Steelcraft • Curries • Ceco • Republic • Mesker • Pioneer • DeanSteel
Custom Hollow Metal Frames
We fabricate custom hollow metal frames to fit any size opening, including borrowed lite, sidelite and transom frames of any profile. Frames are available in virtually any jamb depth or profile and can be welded or made as knocked down frames.
Glazing beads and screws provided for Lite and Transom Frames • Glass provided for Lite and Transom Frames (clear fire-rated glass and wire safety glass options) • Steel Panels provided for Transom Frames • Fire Rated Borrowed Lite, Sidelite and Transom Frames
Custom Face Sizes, Throat Sizes and Profiles Available Upon Request, Including Single Rabbet and Equal Rabbet.
Masonry Frame
Drywall Frame
Mullion
Cased Opening Frame
Measuring for Frames that Wrap Wall
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″ |
CMU |
4″
|
– | 3-5/8″ | 4-3/4″ |
CMU |
6″
|
– | 5-5/8″ | 6-3/4″ |
CMU |
8″
|
– | 7-5/8″ | 8-3/4″ |
KD Drywall Frame (wraps the wall)
A = opening width + 2″
B = opening height + 1″
The rough opening would be 38″ x 85″
for a 3’0″ x 7’0″ door & frame
Note: For fire rated openings, drywall must extend at least 1/2″ into frame.
Masonry Frame (butt wall)
A = opening width + 4 ½”
B = opening height + 2 ¼”
The rough opening would be 40 ½” x 86 ¼”
for a 3’0″ x 7’0″ door & frame
Timely Prefinished Steel Frame
A = opening width + 1 ¼”
B = opening height + 1″
The rough opening would be 37 ¼” x 85″
for a 3’0″ x 7’0″ door & frame
KD Sidelite Frame
A = opening width + sidelite + 2″ for each mullion + 2″
B = opening height + 1″
A 3’0″ x 7’0″ door & frame with a 12″ sidelite
would have a rough opening of 52″ x 85″