Hollow Metal Door Frames

KD Drywall Hollow Metal Frame

KD Drywall Frame

3 piece knocked down - wraps wall

Starting at $115
KD Masonry Hollow Metal Frame

KD Masonry Frame

knocked down - 3 piece

Starting at $105
Welded Hollow Metal Door Frame

Welded Frame

for block or stud walls

Starting at $128
Hollow Metal Cased Opening Frame

Cased Opening Frame

flush frame; without stops

Starting at $99
Prefinished Steel Door Frame

Prefinished Steel Frame

Timely interior frames - in 4 colors

Starting at $99
Hollow Metal Borrowed Lite Frame

Borrowed Lite Frame

steel window frame

Starting at $149
Hollow Metal Sidelite Frame

Sidelite Frame

with glass or steel panels

Starting at $199
Hollow Metal Transom Frame

Transom Frame

with glass or steel panel

Starting at $199
Double Egress Hollow Metal Frame

Double Egress Frame

opposite stops and rabbets

Starting at $205

Nationwide Delivery!

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 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

Hollow Metal Door Frames
Made in the USA

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 (Fire Lite Glass Available) • Steel Panels provided for Transom Frames • Fire Rated Borrowed Lite, Sidelite and Transom Frames

Jamb Depths

Custom Face Sizes, Throat Sizes and Profiles Available Upon Request, Including Single Rabbet and Equal Rabbet.

Hollow Metal Masonry Frame Profile
Masonry Frame
Hollow Metal Drywall Frame Profiles
Drywall Frame
Hollow Metal Mullion Frame Profiles
Mullion
Hollow Metal Cased Opening Frame Profile
Cased Opening Frame

Measuring for Frames that Wrap Wall

Stud Type
Stud Size
Drywall on each sideWall 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"
Rough Opening Sizes

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.

Hollow Metal Masonry Frame Rough Opening

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″