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15 Articles

fire-rated openings ×

Concealed Power Transfer on Doors With Closers: Routing Wires When the Frame Head Is Already Occupied

The Problem Nobody Plans for Until the Closer Template Goes Down This article is for commercial hardware contractors, access control integrators, school facilities teams, and specifiers who need to tr...

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Jul 29, 2026

Frame Head Reinforcing on Hollow Metal Frames: What Gets Missed Before the Hardware Goes In

What This Article Covers and Who It Helps Frame head reinforcing is one of those line items on a hardware schedule that looks minor until a closer arm pulls out of an underbuilt header, or an inspecto...

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Jul 28, 2026

Concealed Leaf Continuous Hinges: What the Hidden Leaf Actually Changes on the Job Site

What This Guide Covers and Who It Is For Concealed leaf continuous geared hinges are specified on commercial openings where aesthetics, security, or sightline requirements push the hardware as close t...

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Jul 26, 2026

Concealed Hinges on Interior Doors: When the Invisible Hardware Choice Creates a Very Visible Problem at Rough Opening Time

Why Concealed Hinges Punish Guesswork at the Door Prep Stage A fully concealed hinge is invisible when the door is closed. That clean, uninterrupted edge profile is exactly why architects specify them...

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Jul 1, 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

Why the Strike Locations on a Tall Door Multi-Point Lockset Get Miscalculated Before the Frame Is Ever Set

What This Article Covers -- and Who It Helps Multi-point locksets on tall commercial doors -- 8-foot, 9-foot, and taller openings -- create a specific coordination problem that does not exist on stand...

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Jun 30, 2026

Knockdown Frame Assembly Sequence: The Order of Operations That Keeps a Steel Frame Plumb From Corner to Anchor

What This Guide Covers and Who It Helps A knocked-down (KD) steel door frame ships in three separate pieces -- two jambs and a head -- and must be assembled on site before it can be set in the wall. G...

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Jun 28, 2026

Cylinder Dogging on Exit Devices: Why the Upgrade Gets Ordered Wrong Before Anyone Checks the Fire Rating

What Cylinder Dogging Actually Does on a Panic Bar Cylinder dogging is a feature that lets a building operator use a standard key cylinder to hold an exit device's latch bolt in the retracted position...

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Jun 27, 2026

The Bottom Strike on a Vertical Rod Exit Device: Why the Floor Prep Gets Done Wrong Before the Door Ever Closes

What This Article Covers This guide is for commercial subcontractors, facility maintenance technicians, and project managers who are installing or replacing vertical rod exit devices and want to avoid...

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Jun 25, 2026

Latchbolt and Cam Monitoring on Fail-Secure Electric Strikes: What the Two Signals Actually Mean and Why Both Matter on a Fire-Rated Opening

What This Article Covers When a fail-secure electric strike is specified on a fire-rated opening, the hardware selection conversation usually stops at two questions: Is it fail-secure? Does it carry a...

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May 25, 2026

Fail-Secure Electric Strikes on Fire-Rated Doors: What the Monitoring Outputs Actually Tell You

What This Article Covers This guide is for contractors, security integrators, and facility managers who specify or install fail-secure electric strikes on fire-rated openings. Specifically, it address...

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May 24, 2026

When a Spring Hinge Set Has Mixed Corner Profiles and the Door Is Already Prepped: Making It Work in the Field

The Problem Appears After the Door Is Hung This article is for contractors, facility maintenance teams, and hardware suppliers dealing with a specific field condition: a spring hinge replacement or re...

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May 20, 2026

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