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Maison Keying for Apartment Buildings: What Property Managers and Specifiers Need to Get Right

Maison Keying for Apartment Buildings: What Property Managers and Specifiers Need to Get Right

What Is Maison Keying? Maison keying is a specific keying arrangement used in multi-unit residential buildings where every tenant's unit key also opens the common entry doors of the building — vestibu...

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Aug 3, 2026 Our Blog

Through-Bolt vs. Sex Bolt for Exit Devices: Which Fastening Method Belongs on Your Door

Two Ways to Anchor an Exit Device -- and Why the Choice Is Not Interchangeable This article explains the practical difference between through-bolt and sex bolt (also called barrel bolt or Chicago scre...

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Aug 3, 2026 Our Blog

Propping vs. Holding Back: When a Mortise Lock Hold-Back Function Is the Right Answer for Your Door Schedule

What This Article Covers This guide is for commercial hardware specifiers, facility managers, and installing contractors who encounter doors that need to stay latched open during business hours -- but...

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Aug 3, 2026 Our Blog

Mortise Cylinders vs Rim Cylinders: Choosing the Right Cylinder for the Lock Body You Have

The Short Answer: It Depends on What the Cylinder Plugs Into This article helps contractors, facility managers, and hardware specifiers understand the practical differences between mortise cylinders a...

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Aug 2, 2026 Our Blog

Hidden in Plain Sight: Specifying Concealed Overhead Door Holders for Upscale Interiors

Why Visible Hardware Is the Wrong Answer in Design-Forward Spaces This article covers how concealed overhead door holders work, where they belong on a hardware schedule, and what specifiers and commer...

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Aug 2, 2026 Our Blog

Full Surface vs. Full Mortise Continuous Geared Hinges: Choosing the Right Configuration When the Door Is Already Hung

The Configuration Decision That Trips Up Retrofit Projects This article is for facility managers, commercial installers, and project managers who are replacing failed or undersized hinges on an existi...

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Aug 2, 2026 Our Blog

ICC A117.1 Accessible Door Hardware: What the Standard Actually Requires at Every Opening

What This Article Covers and Who It Helps ICC A117.1 is the technical standard that defines how doors and hardware must perform on accessible routes in commercial buildings. If you are a facility mana...

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Aug 1, 2026 Our Blog

The Concealed Offset Panic Threshold: What Specifiers Get Wrong Before the Floor Goes Down

What This Article Covers and Who It Helps This guide explains how panic thresholds with a concealed offset work, why they are misspecified more often than almost any other threshold type, and what spe...

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Aug 1, 2026 Our Blog

Why Stainless Steel Hinges Corrode Anyway: Material Grade, Finish, and the Coastal Specification Problem

When "Stainless" Is Not Enough: A Field Specification Problem This article is for contractors, facility managers, and architects who have specified stainless steel hinges, watched them rust, and wonde...

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Aug 1, 2026 Our Blog

Visitor Management Starts at the Door: What Facility Teams Get Wrong About Hardware Integration

What This Article Covers and Who It Helps Visitor management systems (VMS) have become standard practice in schools, healthcare facilities, corporate campuses, and industrial sites. Software platforms...

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Jul 31, 2026 Our Blog

Adjustable Throat Frames for Variable Wall Thickness: Getting the Jamb Depth Right Before You Order

Why Wall Thickness Is the First Number That Has to Be Right This article explains what adjustable throat hollow metal frames are, when they solve a real field problem, and what specifiers and installe...

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Jul 31, 2026 Our Blog

When the Lock Should Disappear: Specifying Concealed Electromagnetic Locks for Design-Sensitive Openings

The Problem With a Visible Maglock in a Finished Space Standard surface-mounted electromagnetic locks do exactly what they are supposed to do: they hold a door shut with hundreds of pounds of force, r...

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Jul 31, 2026 Our Blog

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