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4 Articles

pin × automatic door bottoms ×

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...

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Apr 23, 2026 Our Blog

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 Our Blog

Fire-Rated Automatic Door Bottoms: How to Specify and Install Them Right

Why the Gap at the Bottom of a Fire Door Matters More Than You Think The space beneath a fire door is one of the most overlooked details in door assembly compliance. Too much clearance and you fail an...

NFPA 80 compliance automatic door bottoms commercial door seals door gasketing fire door hardware

Apr 22, 2026 Our Blog

Fire-Rated and Acoustic Automatic Door Bottoms: A Specifier's Guide to Getting the Assembly Right

What This Guide Covers Automatic door bottoms that carry both a fire rating and an acoustic (sound attenuation) rating occupy a narrow but critical position in commercial hardware scheduling. Specifyi...

acoustic door seals automatic door bottoms code compliance door gasketing fire door hardware

Apr 22, 2026 Our Blog