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34 Articles

door closers ×

Concealed Power Transfer on Doors with Closers: How to Route Low-Voltage Wiring Without Cutting Corners

What This Article Covers and Who It Helps When an electrified lock, electrified exit device, or access control reader needs power delivered to the door leaf, the wiring has to cross the moving gap bet...

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Sep 30, 2026

Door Closer Body Crack vs. Valve Failure: How to Tell Which Problem You Actually Have Before You Order a Replacement

Why the Diagnosis Matters Before You Touch the Order Form A door closer that no longer controls speed, slams shut, drifts open, or leaks fluid sends the same distress signal regardless of root cause. ...

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Sep 27, 2026

Double-Acting Door Hardware Sets: What Changes When the Door Swings Both Ways

What This Article Covers -- and Who It Helps A double-acting door swings freely in both directions from a centered rest position rather than stopping at a frame stop like a conventional single-acting ...

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Sep 24, 2026

Pull Side vs. Push Side Closer Mounting: How to Choose the Right Position Before the Door Goes In

Why Mounting Position Is the First Closer Decision, Not the Last This article explains the practical difference between pull-side and push-side door closer mounting, when each position is the right ca...

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Sep 19, 2026

ADA Closer Spring Force: The Field Adjustment That Determines Whether Your Door Passes or Fails

What This Article Covers -- and Who Needs It A door closer that is wound too tight is one of the most common ADA compliance failures in commercial buildings -- and one of the easiest to miss during a ...

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Sep 16, 2026

Surface-Mounted Door Closer Selection: The Five Decisions That Determine the Right Unit for Your Opening

What This Guide Covers -- and Who It Is For Choosing a surface-mounted door closer sounds straightforward until you are standing in front of a 4-foot exterior fire-rated door in a school corridor or a...

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Sep 10, 2026

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...

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Sep 6, 2026

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...

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Sep 5, 2026

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...

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Sep 4, 2026

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

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

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

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