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15 Articles

fire-rated door hardware ×

Fire-Rated Auto Door Bottoms: Why the 3/4-Inch Drop Spec Is a Code Decision, Not a Catalog Choice

What This Article Covers This guide is for commercial contractors, facility managers, and specifiers who are selecting or replacing an automatic door bottom on a fire-rated opening. Specifically, it a...

NFPA 80 compliance automatic door bottoms door seals and sweeps fire door inspection fire-rated door hardware

Apr 23, 2026

Fire-Rated Automatic Door Bottoms: What Makes a Drop Seal Code-Compliant on a Labeled Opening

Why the Fire Rating on an Automatic Door Bottom Actually Matters This guide is for contractors, facility managers, and specifiers who need to understand the compliance difference between a standard au...

NFPA 80 compliance automatic door bottoms door bottom seals fire door assembly fire-rated door hardware

Apr 23, 2026

Fire-Rated Acoustic Door Bottoms: How to Specify and Install Them Right the First Time

Two Requirements, One Product: Why Acoustic Fire-Rated Door Bottoms Demand Careful Specification When a door opening must control both sound transmission and fire spread, the door bottom is one of the...

NFPA 80 compliance acoustic door bottoms automatic door bottom door weatherseal fire-rated door hardware

Apr 22, 2026

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