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436 Articles

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Closer Torque Rating vs. Door Inertia: Why the Physics of Your Opening Determines the Right Closer Size

What This Article Covers -- and Who It Helps When a closer fails to latch a heavy corridor door or slams shut faster than it should, the instinct is to blame the spring adjustment. The real cause is u...

ADA compliance ANSI A156.4 closer sizing commercial hardware door closers

Sep 6, 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

Fail Secure vs. Fail Safe on an Electrified Mortise Lock: How the Wrong Choice Creates a Code Problem

What This Article Covers and Who It Helps When an electrified mortise lockset shows up on a hardware schedule, one of the first decisions is deceptively simple-looking: fail secure or fail safe? That ...

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Sep 6, 2026 Our Blog

Bump Keys and Your Door Cylinders: What the Attack Looks Like and How Hardware Spec Stops It

What This Article Covers and Who It Helps Bump keying is one of the fastest ways an unauthorized person can open a standard pin-tumbler lock without leaving visible evidence of forced entry. This guid...

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Sep 5, 2026 Our Blog

Cam-Action vs. Rack-and-Pinion Door Closers: Which Mechanism Belongs on Your Opening?

Two Mechanisms, One Job -- But Very Different Results This article explains the mechanical difference between cam-action and rack-and-pinion door closers, when each design has the advantage, and how t...

ADA compliance cam-action closers commercial hardware door closers specification guide

Sep 5, 2026 Our Blog

Door Closer Spring Size by Door Width and Weight: Getting the Number Right Before You Install

Why Spring Rate Is the First Closer Decision, Not an Afterthought This article helps contractors, facility managers, and specifiers choose the correct door closer spring size based on door width and w...

ADA compliance closer sizing commercial hardware door closers spring rate

Sep 4, 2026 Our Blog

Revolving Door Hardware Basics: What Every Spec and Maintenance Team Needs to Know

What This Article Covers -- and Who It Helps Revolving doors are a common sight at hotel lobbies, hospital main entrances, corporate headquarters, and large retail facilities. They manage high foot tr...

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Sep 4, 2026 Our Blog

Door Pull CTC: Why the Center-to-Center Dimension Is the First Decision on Any Pull Hardware Schedule

What CTC Means on a Door Pull -- and Why It Drives Everything Else This article is for contractors, facility managers, and architects who need to specify or order door pulls without sending the projec...

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Sep 4, 2026 Our Blog

Plain Bearing vs. Ball Bearing on a Door with a Closer: Why the Closer Is the Decision-Maker

The Closer Changes Everything About How a Hinge Wears This article is for commercial contractors, facility managers, and architects who are specifying or replacing hinges on doors that carry a door cl...

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Sep 3, 2026 Our Blog

Fastener Failure at the Frame: Why Screw Type Matters More Than Torque on Hollow Metal Hinge Installations

This article is for commercial subcontractors, facility maintenance staff, and hardware specifiers who work with hollow metal frames and want to understand why the wrong hinge fastener -- even one tha...

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Sep 2, 2026 Our Blog

When the HVAC Changes, Your Door Closers Need a Second Look

Why a New HVAC System Can Make a Perfectly Good Closer Fail This article is for facility managers, mechanical contractors, and building engineers who have noticed that doors are slamming, not latching...

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Sep 2, 2026 Our Blog

Why Plain Bearing Hinges Get Replaced Before Their Time: Understanding Load, Use Frequency, and the Closer Pairing Rule

The Hinge Nobody Questions Until It Starts Sagging Plain bearing hinges are among the most common hardware items on a commercial project, and they are also among the most commonly misapplied. This gui...

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Sep 2, 2026 Our Blog

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