Commercial Door Frame Types

3 piece knocked down wraps wall.
Commercial door frame types. While other commercial doors are installed in steel frames these doors are installed in aluminum frames which have a slightly different profile than other units. Hollow metal door frames. This frame does not arrive assembled three pieces 2 jambs and head welded masonry frame. This frame arrives assembled squared welded at miters and ground smooth.
Hollow metal frame types. Hollow metal door frames are a heavy duty steel frame that can be provided as a knocked down or welded assembly. Knocked down masonry frame. Aluminum assemblies can usually only be fire rated up to one hour which may not meet some building codes.
At the base of the frame a spreader bar is welded in. Commercial metal door frames hollow metal door frames timely prefinished steel frames and interior aluminum door frames are among the most common types of commercial door frames.