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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

Three-Function Mortise Lock, One Opening: How to Choose Between Apartment, Exit, and Public Toilet Function Before the Door Gets Prepped

One Lock Body, Three Different Jobs This guide is for commercial installers, facility managers, and specifiers who need to assign the correct mortise lock function to openings that serve mixed-use cor...

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Sep 12, 2026

Why Fail Safe Is the Wrong Default on a Mortise Lock with a Deadbolt

The Word "Safe" Does Not Mean What You Think It Does on an Electrified Mortise Lock This article is for contractors, facility managers, and architects who are specifying or troubleshooting electrified...

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Sep 12, 2026

What Happens to a Detention Lockset When an Inmate Gets Two Minutes and a Piece of Steel: Understanding Heavy-Duty Lock Requirements in Correctional Openings

What This Article Covers and Who It Helps Detention and correctional facility openings are among the most demanding environments in commercial construction. Standard Grade 1 cylindrical or mortise loc...

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Sep 11, 2026

Fire Frame Labels and Field Cutting: What Installers and Inspectors Need to Know

Why the Label on a Fire-Rated Frame Is Not Just a Sticker This article covers two closely related compliance topics that trip up installers, inspectors, and facility teams alike: how fire-rated frame ...

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Sep 11, 2026

ADA Reach Ranges for Door Hardware: What the Numbers Mean and Where They Come From

Why Hardware Height Is a Compliance Decision, Not a Preference This article explains the ADA reach range requirements that govern where door hardware must be mounted on commercial openings. It is writ...

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Sep 11, 2026

K-12 School Hardware Specification Basics: What Every Opening Needs Before the Schedule Ships

What This Guide Covers and Who It Helps Specifying door hardware for a K-12 school is more demanding than a typical commercial project. You are balancing daily high-traffic wear, ADA accessibility on ...

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Sep 11, 2026

Double Cylinder on an Electrified Mortise Lock: Why the Second Cylinder Creates a Code Problem You Have to Solve Before the Schedule Ships

Why a Second Cylinder Changes Everything on an Electrified Mortise Opening An electrified mortise lockset with a fail-secure function is already a carefully balanced spec decision. Add a double cylind...

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Sep 11, 2026

Passage vs. Closet Function on a Mortise Latchset: Why the Distinction Matters Before the Door Gets Prepped

Two Functions, One Mortise Body — and a Decision That Has to Happen Early This article is for commercial contractors, facility managers, and architects who specify or install Grade 1 mortise latchsets...

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Sep 11, 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

Cylinder Service Fees on Competitor-Brand Cores: What Facilities Pay When the Masterkey System Gets Complicated

Why a Simple Rekey Can Turn Into an Unexpected Invoice This article is for facility managers, commercial locksmiths, and construction project managers who oversee buildings with mixed-brand locking ha...

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Sep 10, 2026

Interchangeable Core Cylinders Explained: SFIC vs. LFIC and When Each Format Belongs on Your Project

What This Article Covers Interchangeable core (IC) cylinders let facility teams remove and replace lock cores without tools, a screwdriver, or a locksmith on site. This guide explains how the two main...

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Sep 10, 2026

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