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21 Articles

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Why the Label on a Fire-Rated Wood Door Is the Most Important Thing You Cannot Drill Through

What Is a Fire Door Label and Why Does It Matter on Wood Doors? A fire door label is the physical evidence that a door assembly has been manufactured, tested, and listed to withstand a defined fire ex...

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Oct 15, 2026 Our Blog

The Frame Is Fine, the Door Is Not: How Half Surface Hinges Solve Retrofit Hinge Problems Without Touching the Frame Prep

When the Opening Has Already Been Built, but the Hardware Has Not This article is for contractors, maintenance technicians, and facility managers who are replacing doors on existing frames and cannot ...

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Oct 2, 2026 Our Blog

OSHPD Healthcare Projects and Door Hardware: What Changes When California Oversight Is in the Room

What This Guide Covers and Who It Helps If you are a contractor, architect, or facility manager working on a California hospital, skilled nursing facility, or acute care project, you already know that...

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Sep 22, 2026 Our Blog

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 Our Blog

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 Our Blog

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 Our Blog

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 Our Blog

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 Our Blog

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 Our Blog

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 Our Blog

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 Our Blog

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 Our Blog

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