Steel Stiffened Hollow Metal Door

Steel Stiffened Hollow Metal Door

Speaking of the core of hollow metal doors, there are several standard fillings we can choose, such as honeycomb, rockwool, polyurethane and steel stiffened. Today we would like to focus on the steel stiffened type, including its features, structures and what makes it different from the other filling materials.
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Speaking of the core of hollow metal doors, there are several standard fillings we can choose, such as honeycomb, rockwool, polyurethane and steel stiffened. Today we would like to do a brief introduction of the steel stiffened type, including its features, structures and what makes it different from the other filling materials.


Features:

  • Available in galvanized steel and stainless steel

  • Door leaf 18-20Ga. and frame 16-18Ga.

  • 1-3/4” thickness

  • Infilled with steel stiffened

  • 6" Stiffener Spacing

  • Full set of UL  listed hardware available

  • Fire rated up to 3 hours with UL label

  • Drywall and Masonry frame with anchors

  • Primed or powder coated

  • Hinges and locks prep ready


steel stiffener hollow metal door


Steel channels that run the full height of the door and are spaced about 6” across the width of the door. With the steel stiffened reinforcements, also known as the stiffeners placed vertically inside the door, steel stiffened core adds higher strength and durability, making it suitable for application scenes that have a demand for high security and abuse.



In addition, we also have hollow metal doors with other filling materials, such as honeycomb, rock wool, polyurethane and other materials. It should be noted that the three-hour fire protection central control metal door cannot be filled with foam materials.

core of hollow metal door







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