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28 Articles

pin × fire door compliance ×

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 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

Hospital Tip Hinges: Why the Tip Style on a Swing Clear Hinge Is Not a Cosmetic Choice

A Small Detail That Shows Up on Every Inspection and Every Cleaning Round This article is for facility managers, healthcare construction managers, and architectural specifiers who are putting together...

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Aug 21, 2026

When the Mortise Lockset Hold-Back Function Creates a Liability: What Facilities Miss About Trim Compatibility and Door Classification

Why Hold-Back on a Mortise Lockset Is a Problem Waiting to Happen This article is for facility managers, commercial contractors, and project architects who specify or maintain mortise locksets with a ...

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Aug 18, 2026

Hold-Back Function on a Mortise Lock: What Actually Happens at the Door When You Activate It

What Is the Hold-Back Function on a Mortise Lock? A mortise lock with a hold-back function does one specific thing: it lets the occupant retract the latch bolt and keep it retracted without holding th...

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Aug 15, 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

UL 1784 Smoke Leakage Compliance Basics: What Every Specifier Needs to Know Before the Door Gets Labeled

What This Article Covers and Who It Helps If you are specifying, installing, or inspecting fire-rated door openings that must control smoke migration, UL 1784 is the standard that governs whether your...

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Jul 25, 2026

Concealed vs. Exposed Gear: Why the Hinge Profile You Pick Changes the Retrofit Job Completely

What This Article Covers and Who It Helps When a facility manager or contractor decides to swap aging butt hinges for a full-height continuous geared hinge, the first question is almost never the righ...

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Jul 22, 2026

Door Sweep Alignment on Uneven Floors: How the Sill Gap Changes What Your Brush Seal Can Actually Do

What This Article Covers and Who It Helps A door sweep looks like one of the simplest items in a hardware set. Screw it to the bottom of the door, done. But on job sites with settled concrete, uneven ...

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Jul 20, 2026

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