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3 Articles

classroom security ×

Locking the Classroom From the Inside: How Classroom Intruder Locksets Work and What Schools Actually Need to Specify

Why the Old Classroom Lock Became a Liability This article explains how classroom security lockdown locksets work, what lockdown functions are available, how they interact with egress code, and what s...

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Jul 24, 2026

Classroom Lockdown Function Timing: Why a Mis-Timed Cylinder Defeats the Whole Lockdown Strategy

What This Article Covers -- and Who It Helps This post explains what cylinder timing means on a classroom-function lockset, why a timing error causes the lock to fail precisely when a lockdown is call...

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Jun 28, 2026

Commercial Lock Functions Explained: Mortise, Cylindrical, Deadbolts, and Outside Exit Trims

What Are Lock Functions and Why Do They Matter? A lock function describes exactly how a door behaves from both sides: who can enter, who can exit freely, and under what conditions a key or credential ...

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Apr 19, 2026