Knock Down Steel Door Frames

The rough opening for a knockdown metal door frame is determined by the specified door size, frame profile, wall condition, frame type and installation requirements. It should be confirmed from the project drawings and the selected frame details rather than estimated generically. Provide the door schedule, wall information and configuration requirements when requesting a quote so the appropriate dimensions can be reviewed.

Knock down steel door frames are used in commercial building construction and standard doorway installations, as well as fire-rated doorway requirements. They can also be configured for pocket doors, double egress openings, sidelites, transoms, borrowed lights and three-sided frame assemblies. The right configuration depends on the opening design, wall condition and project specifications.

The listed frame products are available with gauge options from 16 ga to 12 ga. The appropriate selection depends on the opening requirements, frame configuration, application and project specifications. Custom Metal Products also offers standard and custom profiles, allowing the frame design to be aligned with commercial construction, fire-rated and specialty opening requirements.

Yes. The hollow metal frame product line includes fire-rated options with a UL label. Fire-rated frame selection should match the required opening assembly and project specifications. Customers can also request related configurations such as sidelites, transoms, borrowed lights and double egress frames, subject to the applicable design and rating requirements.

Yes. Cut-and-notch frame assemblies are listed for sidelite, transom and borrowed light applications. These configurations can be developed alongside the main doorway opening to support commercial architectural layouts. The required profile, dimensions, wall condition and assembly details should be included with the project information so the frame can be quoted and manufactured appropriately.

Custom Metal Products lists standard and custom profiles, along with kerfed, arched, radius and segmented frame options. Special configurations include pocket door frames, double egress frames, sidelite and transom frames, borrowed light frames and lead-lined frames. Availability should be confirmed against the drawings, opening schedule and application requirements for each project.