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25 Articles

fire door hardware × ×

NFPA 80 Fire Door Inspection: The 13-Point Annual Checklist Every Facility Needs

What This Article Covers -- and Who It Helps NFPA 80, Standard for Fire Doors and Other Opening Protectives , requires that every fire door assembly be inspected and tested annually. This guide walks ...

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Sep 6, 2026

Why the Door Coordinator Is the Most Overlooked Item on a Closer-Pair Hardware Schedule

What This Article Covers -- and Who Needs It If you are specifying or installing surface closers on a pair of doors, the door coordinator is not optional hardware -- it is the device that makes the en...

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Aug 30, 2026

Why the Core Inside a Wood Door Determines Whether It Earns a Fire Rating

What This Article Covers -- and Who It Helps If you are specifying wood doors for a fire-rated opening -- in a school corridor, a hospital stairwell, or a commercial tenant separation -- the single mo...

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Aug 29, 2026

Why Plain Bearing Hinges Fail Before the Door Does: Reading the ANSI Grade Before You Order

The Hinge Passed Spec on Paper and Still Failed in the Field This article is for contractors, facility managers, and specifiers who have ordered what looks like a perfectly acceptable commercial hinge...

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Aug 22, 2026

Fire Alarm Release on Magnetic Door Holders: What Facilities Get Wrong Before the Inspector Arrives

What This Article Covers -- and Who It Helps Magnetic door holders are one of the most common hold-open devices in schools, hospitals, and commercial corridors. But they are also one of the most frequ...

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Aug 9, 2026

Through-Bolt vs. Sex Bolt for Exit Devices: Which Fastening Method Belongs on Your Door

Two Ways to Anchor an Exit Device -- and Why the Choice Is Not Interchangeable This article explains the practical difference between through-bolt and sex bolt (also called barrel bolt or Chicago scre...

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Aug 3, 2026

Silicone Bulb Gasketing on Fire Doors: Why Material Choice Determines Whether the Seal Survives the Test

What This Article Covers and Who It Helps This guide explains how silicone bulb gasketing works on fire-rated door assemblies, why the material matters for long-term seal integrity, and what the listi...

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Jul 29, 2026

Smoke Seals at Fire Corridor Doors: Category G vs Category H and What the Opening Actually Needs

What This Article Covers and Who It Helps Smoke seals at fire-rated corridor doors are one of the most frequently under-specified and mis-specified items on a door schedule. This guide explains what a...

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Jul 21, 2026

Fire Door Inspector Certification: What the FDAI Credential Actually Requires and Why It Changes Your Inspection Walk

Who This Article Is For and What It Covers This article explains the fire door assembly inspector (FDAI) certification process, what the credential actually tests, and how the inspection checklist con...

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Jul 7, 2026

Fire Pin Assemblies in Steel Hinges: What They Do, When They Matter, and How to Confirm the Opening Is Covered

What This Article Covers This guide explains what a fire pin assembly is inside a steel butt hinge, why it exists, which openings require it, and what facility managers, contractors, and specifiers sh...

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Jun 30, 2026

Mixed-Corner Spring Hinges: Why One Square Leaf and One Radius Leaf Exists — and When You Actually Need It

What This Article Covers This guide explains why spring hinges are sometimes manufactured with one square-corner leaf and one radius-corner leaf — a configuration that confuses ordering teams and caus...

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May 15, 2026

Spring Hinge Tension Adjustment After Installation: The Step That Gets Skipped on Small Doors

Why the Factory Tension Setting Is Never the Final Answer Spring hinges ship with a default tension setting intended for a mid-range door weight and size. For the installer or facility technician rece...

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May 14, 2026

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