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Hollow Metal Frames

Drywall Frames

Imperial's drywall door frames are 16-gauge galvanized steel, fire rated up to 90 minutes, and field-adjustable for steel stud construction. ANSI A250.8-2017 / SDI 100 compliant.

Gauge16
Max opening4'0" × 8'0"
Jamb depth5-7/8" to 8-3/4"
Face2"
  • Next-day shipping nationwide
  • Stocked in Charlotte, NC
Knock down hollow metal drywall frame with jamb and header details, Imperial USA

Specifications

Gauge16
MaterialGalvanized Steel A40
Max Opening (Single)4'0" × 8'0"
Jamb Depths5-7/8", 6-1/4", 6-3/4", 7-1/4", 7-3/4", 8-1/4", 8-3/4"
Face2" (50 mm)
Stop5/8"
Return1/2"
Frame TypeDF (Drywall Frame) | DF 4" Header, ADF
Corner TypeFactory die-mitered, standard saw cut and welded (ANSI A250.8-2017 / SDI 100)
Anchor TypeCompression anchors (countersunk hole)

Built In

  • Knocked down with exact fit corners
  • 4-7/8" universal strike preparation
  • Screw-adjusting compressor anchors for drywall
  • 7 gauge hinge reinforcements (standard / heavy duty)
  • 9/32" silencer preparations
  • Hinge and strike available for Steelcraft, Amweld, Ceco, Curries, Deansteel, Mesker, Pioneer, Republic

Adjustable Frames

Our 16-gauge knock-down frames are field-adjustable to fit varying wall depths — no special order required for most installations.

Adjustable Jamb Depth Ranges
Two expandable ranges to cover any wall depth
Slide the frame components together or apart to match your wall — set the throat 1/16" wider than the thickest point of the opening.
4-5/8" – 8-3/4"" Standard Range
+
8-1/2" – 14" Extended Range
Frame Features
  • 16 Gauge A40 paintable galvanneal steel
  • Mechanical K.D. corner connection — exact fit miters
  • Faces punched & dimpled for wall anchoring
  • (3) 4-1/2" square corner hinge reinforcements prepped
  • 12-Gauge ASA Strike Reinforcement
  • Fire rated — WHI label on 6'8", 7'0" & 8'0" hinge jambs
  • Up to 1-1/2 Hr drywall / 3 Hr masonry fire rating
  • Interior and exterior application
  • Rubber bumper / silencer holes optional
Rough Opening Requirements
WidthNominal door width + 1-1/2"
HeightNominal door height + 1"
Floor clearance3/4" standard tolerance
Min. distance to adjacent wall3" minimum
Throat setting1/16" wider than thickest point
Tools Required
Laser levelling device  ·  Plumb bobs  ·  Spirit level  ·  Measuring tape  ·  Battery impact drill  ·  Timber shims  ·  Platform ladder
Installation Overview — 5 Steps
STEP 01
Install the header into the rough opening
STEP 02
Engage hinge jamb corner tabs and slide into position
STEP 03
Install strike jamb the same way, close all miters
STEP 04
Adjust frame for proper clearances, plumb and level
STEP 05
Screw and fasten the frame through holes provided
Full Installation Instructions Download the complete 16-gauge adjustable frame installation guide — includes diagrams, rough opening specs, and assembly steps.
Download PDF

Build Your Part Number

Send us a part number and we can quote faster.

Format: HM-[gauge]DF-[hinge]-[component]-[height]-[hand]-[depth]

Example HM-16DF-SC-HJ-70-LH-625
Gauge · Hinge · Component · Height · Hand · Depth

Drywall Frames FAQ

What gauge are your drywall frames?

16 gauge is standard and 14 gauge is optional, in A40 galvannealed steel.

How are drywall frames installed?

They ship knocked down with mitered corners and assemble on site with no welding. Compression anchors hold the frame in the stud wall.

What jamb depths are available?

5-7/8", 6-1/4", 6-3/4", 7-1/4", 7-3/4", 8-1/4" and 8-3/4". Adjustable frames cover varying wall depths.

What is the rough opening for a drywall frame?

Nominal door width plus 1-1/2" and nominal door height plus 1".

Which hinge and strike preps are available?

7 gauge hinge reinforcements on a 4-1/2" template and a 12 gauge strike for a 4-7/8" ASA strike, with Steelcraft, Amweld, Ceco, Curries, Deansteel, Mesker, Pioneer and Republic locations.

Need Drywall Frames?

Contact our team for pricing, lead times, and custom configurations.

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