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NRP Hinges on Outswing Doors: When the Pin Is the Vulnerability

Why the Hinge Pin Becomes a Target on Outswing Doors This guide explains non-removable pin (NRP) hinges: what they are, why outswing doors require them, and how to specify or replace them correctly. I...

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Apr 23, 2026

Electric Hinges as Power Transfer Devices: How They Work and When to Specify Them

What Is an Electric Hinge and What Problem Does It Solve? An electric hinge looks almost identical to a standard commercial ball bearing hinge from the corridor side. The difference lives inside: conc...

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Apr 23, 2026

SVR Exit Devices on Non-Rated Oversized Doors: A Specifier's Field Guide to Sizing, Prep, and Outside Trim

What This Guide Covers Surface vertical rod (SVR) exit devices on oversized, non-rated openings introduce a specific set of decisions that a standard rim-device spec simply does not address. This guid...

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Apr 23, 2026

Automatic Door Bottoms: Choosing the Right Drop Seal for Sound, Smoke, and Weather Control

What This Guide Covers Automatic door bottoms are one of the most specified yet least understood items on a hardware schedule. Whether you are sealing a conference room for acoustic privacy, maintaini...

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Apr 23, 2026

Clearing the ADA Threshold Height Hurdle: Ramp Thresholds on Accessible Door Openings

What This Guide Covers and Who It Helps When a door opening sits on an accessible route, the threshold is not just a weatherseal or a floor transition piece -- it is a compliance checkpoint. Facility ...

ADA Thresholds Accessible Hardware Code Compliance Commercial Door Hardware Ramp Thresholds

Apr 23, 2026

Ball Bearing Hinges on Commercial Doors: How to Size and Specify Them Right the First Time

Why Getting Hinge Spec Right Matters Before the Door Ever Gets Hung This guide helps contractors, facility managers, and specifiers choose the correct ball bearing hinge size, quantity, and configurat...

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Apr 23, 2026

SVR Exit Devices on Oversized Fire-Rated Doors: What Changes at 4x8

Why Door Size Changes Everything on a Fire-Rated SVR Opening This guide is for commercial contractors, facility managers, and architects who are specifying or installing a surface vertical rod (SVR) e...

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Apr 23, 2026

Round Knobs vs. Lever Handles: Specifying the Right Office Entry Lockset for Accessibility and Code

Why the Knob-vs-Lever Decision Still Matters on Commercial Projects If you are specifying or replacing hardware on office entry doors, one of the first questions you will face is simple but consequent...

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Apr 22, 2026

ADA Threshold Compliance at Door Transitions: A Practical Guide for Contractors and Facility Managers

Why Threshold Transitions Are a Persistent ADA Problem Of all the details that get flagged during accessibility inspections, floor-level transitions at door openings are among the most frequently cite...

ADA Compliance Accessible Door Hardware Commercial Door Hardware Threshold Hardware Wheelchair Ramps

Apr 22, 2026

Recessed Access Doors in Commercial Construction: How to Spec and Install Them Right

What Is a Recessed Access Door -- and Why Does It Matter to Get It Right? A recessed access door is a flush-mounted panel that sits set back into a wall or ceiling surface, finishing level with the su...

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Apr 22, 2026

Fire-Rated Automatic Door Bottoms: How to Specify and Install Them Right

Why the Gap at the Bottom of a Fire Door Matters More Than You Think The space beneath a fire door is one of the most overlooked details in door assembly compliance. Too much clearance and you fail an...

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Apr 22, 2026

Kick-Down Door Holders: Where They Work, Where They Don't, and How to Spec the Right Stop

What This Guide Covers Kick-down door holders are one of the most misused pieces of hardware in commercial buildings. They are inexpensive, easy to install, and genuinely useful in the right setting. ...

NFPA 80 commercial door hardware door stops and holders facility maintenance fire door compliance

Apr 22, 2026

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