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46 Articles

exit devices ×

Mantrap Installations: How to Specify the Right Hardware for a Two-Door Security Vestibule

What This Guide Covers and Who It Is For A mantrap, also called a security vestibule or airlock entry, is a controlled access passage that uses two doors in sequence to prevent tailgating and unauthor...

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Aug 20, 2026

Delayed Egress Alarm Modules: What Specifiers and Facility Teams Get Wrong Before the Door Goes Live

What This Article Covers -- And Who It Helps Delayed egress alarm modules are one of the most misunderstood options in the exit device world. Specifiers order the wrong configuration. Facilities teams...

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Aug 17, 2026

Exit Only on Stair Tower Doors: Getting the Hardware Package Right the First Time

What This Article Covers and Who It Helps Stair tower doors are among the most frequently misspecified openings in commercial construction. They sit at the intersection of egress requirements, re-entr...

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Aug 16, 2026

Aluminum Storefront Door Hardware: What Actually Goes on That Opening and Why Each Piece Matters

What This Guide Covers and Who It Is For Aluminum storefront doors are the most common commercial entrance type in retail, office, and mixed-use buildings -- and they account for a significant share o...

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Aug 15, 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

The Concealed Offset Panic Threshold: What Specifiers Get Wrong Before the Floor Goes Down

What This Article Covers and Who It Helps This guide explains how panic thresholds with a concealed offset work, why they are misspecified more often than almost any other threshold type, and what spe...

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Aug 1, 2026

When an Exit Device Stops Latching: How the Cam and Housing Assembly Fails and What to Do Before Replacing the Whole Device

The Bar Moves But the Door Does Not Latch: A Common Exit Device Problem With a Specific Cause This article is for facility managers, commercial installers, and maintenance technicians who are troubles...

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Jul 30, 2026

Electric Latch Retraction on Exit Devices: How Access Control Unlocks the Door Without Touching the Bar

What This Article Covers and Who It Helps If you are specifying or installing an access-controlled opening that also requires panic hardware, electric latch retraction (ELR) is the mechanism that ties...

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Jul 28, 2026

Exit Device Prep on Hollow Metal Doors: What Gets Cut Wrong Before the Device Ever Ships

Why Door Prep Is the Decision That Happens First -- and Hurts Last This article is for commercial subcontractors, door and hardware suppliers, and facility project managers who specify or install exit...

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Jul 26, 2026

Electrified Exit Device Trim: How the Outside Lever Controls Ingress Without Blocking Egress

What This Article Covers and Who It Helps Electrified exit device trim is the outside lever, handle, or pull mounted on the secure side of a panic bar that is controlled by an access system rather tha...

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Jul 24, 2026

Passage Function vs Night-Latch Function on Exit Devices: Choosing the Right Outside Trim for the Opening

Why the Outside Trim Function on an Exit Device Is Not a Minor Detail This article explains the operational difference between passage function and night-latch function on exit device outside trim, an...

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Jul 19, 2026

Panic Hardware in Assembly Occupancies: What the Occupant Load Threshold Actually Triggers

What This Article Covers and Who It Helps If you are specifying, bidding, or inspecting door hardware in a theater, arena, conference center, house of worship, banquet hall, or any other assembly-use ...

assembly occupancy code compliance exit devices life safety panic hardware

Jul 13, 2026

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