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46 Articles

fire door compliance ×

Closer Reinforcing in Hollow Metal Doors: What the Prep Code Means and Why It Matters at the Jobsite

What This Article Covers This post explains what closer reinforcing is in a hollow metal door, how it gets specified at the factory, when it matters in the field, and what happens when it is missing o...

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Nov 5, 2026

Four Hinges on a Standard-Height Door: The Scenarios Where the Extra Leaf Earns Its Keep

The Short Answer: Three Hinges Cover Most Doors, But Not Every Door This article is for contractors, facility managers, and specifiers who run into situations where a standard three-hinge layout is no...

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Nov 4, 2026

Sweep Speed vs. Latching Speed on a Door Closer: Two Valves, Two Jobs, One Door That Actually Closes Right

What This Article Covers and Who It Helps If a door is slamming, bouncing off the latch, closing too slowly to latch on a fire corridor, or swinging shut so fast it catches a resident in a healthcare ...

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Oct 31, 2026

Why the Label on a Fire-Rated Wood Door Is the Most Important Thing You Cannot Drill Through

What Is a Fire Door Label and Why Does It Matter on Wood Doors? A fire door label is the physical evidence that a door assembly has been manufactured, tested, and listed to withstand a defined fire ex...

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Oct 15, 2026

Why Your Door Closers Need Readjustment After an HVAC Retrofit or Recommission

The HVAC Work Is Done. So Why Is the Door Drifting Open? This article is for facility managers, building engineers, and commercial contractors who have noticed door closer problems appearing shortly a...

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Oct 10, 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

Wood Door Tolerances and Field Trimming Limits: What Every Installer Needs to Know Before Cutting

What This Article Covers When a wood door arrives on the job site and the rough opening is slightly off, the temptation to grab a saw is real. This guide explains the clearance tolerances a properly h...

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Sep 12, 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

What Every Patient Room Door Opening Actually Needs: A Hardware Specification Guide for Hospital Construction

Who This Guide Is For -- and What It Covers Hospital patient room openings look simple on the hardware schedule. In practice, they carry more requirements than almost any other door type in a healthca...

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Aug 30, 2026

What Failing Seals Actually Look Like at Annual Inspection: A Field Diagnosis Guide

Why Seal Condition Is a Go/No-Go Decision at Inspection Time This guide is for facility managers, maintenance supervisors, and commercial contractors who conduct or prepare for annual door hardware in...

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Aug 29, 2026

The Hold-Back Function on a Mortise Lock Is Not a Door Stop: What Happens When Facilities Use It That Way

What This Article Covers and Who Should Read It This guide is for facility managers, contractors, and project specifiers who encounter mortise locksets with a hold-back function on their opening sched...

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Aug 25, 2026

Fire Door Annual Inspection: Why Hinges Fail the Walk-Through (And What to Do Before the Inspector Arrives)

What This Article Covers and Who It Helps Every fire door in a commercial building must pass an annual inspection under NFPA 80. Facility managers, maintenance technicians, and the contractors they ca...

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Aug 23, 2026

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