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This step-by-step guide explains how to properly install a commercial hollow metal drywall knock-down (KD) framefor interior steel door applications.Drywall frames are designed to wrap the wall and are commonly used inoffices, schools, hospitals, retail spaces, and commercial interiors.
This installation method applies to Steel-Lite architectural hollow metal doors and framesused in drywall construction.
For a complete overview of hollow metal doors, frames, wall conditions, and code requirements, visit theHollow Metal Door Hub.
Need pricing or a custom configuration?Use ourHollow Metal Door Quote Builderto receive a fast, accurate quote.
Watch the full step-by-step installation video below.This walkthrough shows proper frame assembly, anchor adjustment,and alignment techniques used by professional installers.
Prefer written instructions? Continue below for the detailed,step-by-step drywall frame installation guide with photos.
Drywall hollow metal frames are designed to wrap the finished wall.The rough opening must be sized correctly to allow the frame to fit, square, and secure properly.
Rough Opening Guidelines:
Rough Opening Width = Door & Frame Width + 2"
Rough Opening Height = Door & Frame Height + 1"
Example:
For a 3'0" x 7'0" (36" x 84") door package, the rough opening should be 38" x 85".
Insert the bottom anchor brackets into the base of each door jamb.Ensure the anchors are seated flush at the bottom of the frame.
Some drywall frames are furnished with a pre-punched screw hole in the base anchor.If provided, this may be used to temporarily secure the frame during installation.
Position the hinge jamb over the drywall wall and slide it into the rough opening.Ensure the frame wraps evenly around the wall surface.
Slip the head of the frame into place over the wall.Insert the metal tabs (tongues) on the head into the corresponding slotsat the top of the hinge jamb.
Slip the strike jamb over the wall and align it with the frame head.Insert the metal tongues from the head into the slots at the top of the strike jamb.
Adjust the grip-lock anchors located inside both jambs.Turn the anchor screws counterclockwise until the anchors make firm contact with the studs.
The outward pressure forces the miter joints closed and locks the frame securely into the opening.Tighten until the frame is rigid and stable.
Use a level to ensure the frame head is perfectly level.A shimming angle is provided at the base of each jamb if vertical adjustment is required.
Check both jambs with a level to ensure they are plumb.Proper plumb alignment is critical for door operation, hardware performance, and inspection approval.
Secure the sill anchor at the base of the hinge jamb using appropriate screws or nails.
Install a temporary wood spreader across the door opening at the sill.Fasten the bottom anchor at the strike jamb to lock the frame width.
Insert 2-1/2" casing nails through the holes located at the top corners of the frame head.These secure the corner connections and complete the frame installation.
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