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21 Articles

fire door hardware ×

Automatic Door Bottoms: Choosing the Right Drop Seal for Sound, Smoke, and Weather Control

What This Guide Covers Automatic door bottoms are one of the most specified yet least understood items on a hardware schedule. Whether you are sealing a conference room for acoustic privacy, maintaini...

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Apr 23, 2026

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...

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Apr 22, 2026

How to Specify and Install Electric Hinges for Electrified Door Hardware Systems

What Is an Electric Hinge and Why Does It Matter? An electric hinge is a standard-looking butt hinge that contains concealed wiring running through its knuckle. It transfers low-voltage power continuo...

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Apr 22, 2026

Aluminum Astragals for Door Pairs: How to Choose and Install the Right Meeting Stile Seal

Why the Gap Between Double Doors Matters More Than You Think When two door leaves meet at the center of an opening, that joint is called the meeting stile . Without a proper seal at the meeting stile,...

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Apr 22, 2026

Specifying Ball Bearing Hinges for Commercial Doors: Size, Finish, and Fire-Rating Essentials

Why Ball Bearing Hinge Specification Matters More Than Most Specifiers Realize Choosing a hinge sounds straightforward until a door starts sagging six months after opening day, a fire inspector flags ...

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Apr 22, 2026

Security Door Window Lites on Wood Doors: A Specifier's Guide to Glass Selection, Code Fit, and Installation Reality

What Is a Security Door Window Lite — and Why Does the Glazing Material Matter? A security door window lite (also called a vision lite, door glass insert, or door lite frame) is a framed glazing unit ...

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Apr 22, 2026

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...

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Apr 22, 2026

Full Mortised Auto Door Bottoms: Specifying and Installing the Right Drop Seal for Commercial Openings

Why the Door Bottom Is the Most Overlooked Seal in the Assembly When architects and contractors detail a door opening, the perimeter gasketing and threshold typically receive careful attention. The au...

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Apr 22, 2026

Astragals for Double Doors: Problems, Benefits, and the Right Solution

What Is an Astragal -- and Why Does It Matter? An astragal is the hardware component that seals the gap between the two leaves of a pair of doors -- the meeting stile . Without one, that center gap be...

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Apr 19, 2026

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