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18 Articles

e × fire door hardware ×

Fire Door Inspector Certification: What the FDAI Credential Actually Requires and Why It Changes Your Inspection Walk

Who This Article Is For and What It Covers This article explains the fire door assembly inspector (FDAI) certification process, what the credential actually tests, and how the inspection checklist con...

FDAI certification NFPA 80 compliance fire door hardware fire door inspection life safety

Jul 7, 2026

Fire Pin Assemblies in Steel Hinges: What They Do, When They Matter, and How to Confirm the Opening Is Covered

What This Article Covers This guide explains what a fire pin assembly is inside a steel butt hinge, why it exists, which openings require it, and what facility managers, contractors, and specifiers sh...

NFPA 80 compliance fire door hardware fire-rated openings hinge specification steel hinges

Jun 30, 2026

Mixed-Corner Spring Hinges: Why One Square Leaf and One Radius Leaf Exists — and When You Actually Need It

What This Article Covers This guide explains why spring hinges are sometimes manufactured with one square-corner leaf and one radius-corner leaf — a configuration that confuses ordering teams and caus...

commercial hinges fire door hardware hinge specification spring hinges stainless steel hinges

May 15, 2026

Spring Hinge Tension Adjustment After Installation: The Step That Gets Skipped on Small Doors

Why the Factory Tension Setting Is Never the Final Answer Spring hinges ship with a default tension setting intended for a mid-range door weight and size. For the installer or facility technician rece...

commercial door hardware fire door hardware hinge installation self-closing doors spring hinges

May 14, 2026

Spring Hinges Without a Closer: Where the Self-Closing Requirement Meets a Real-World Size Limit

What This Article Covers Spring hinges are specified on fire-rated and non-rated doors when a self-closing function is required but a hydraulic door closer is not practical or budgeted. This guide is ...

NFPA 80 door hardware specification fire door hardware self-closing doors spring hinges

May 11, 2026

Heavy-Weight vs. Standard-Weight Hinges: The Specification Decision That Gets Made Too Late on Commercial Projects

Why Hinge Weight Class Is a Specification Decision, Not a Purchasing Detail This guide is for commercial contractors, facility managers, and architects who need to understand when a heavy-weight conce...

commercial door hinges concealed bearing hinges fire door hardware heavy weight hinges hinge specification

Apr 23, 2026

Spring Hinges as a Closer Substitute: Where They Work, Where They Fall Short, and How to Spec Them Right

What This Guide Covers — and Who It Is For Spring hinges close a door automatically using tension built into the hinge barrel — no overhead closer arm, no floor-concealed mechanism. For contractors, f...

commercial hinge specification door closer alternatives fire door hardware self-closing doors spring hinges

Apr 23, 2026

Full Surface vs. Semi-Mortised Automatic Door Bottoms: Picking the Right Mount for Your Opening

What This Article Covers and Who It Helps Automatic door bottoms are specified across nearly every commercial building type — schools, healthcare facilities, office buildings, and industrial plants — ...

Pemko automatic door bottoms door seals fire door hardware gasketing

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...

automatic door bottoms commercial weatherstrip door gasketing fire door hardware smoke and weather seals

Apr 23, 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...

NFPA 80 compliance automatic door bottoms commercial door seals door gasketing fire door hardware

Apr 22, 2026

How to Specify and Install Electric Hinges for Electrified Door Hardware Systems

What Is an Electric Hinge and Why Does It Matter? An electric hinge is a standard-looking butt hinge that contains concealed wiring running through its knuckle. It transfers low-voltage power continuo...

access control electric hinges electrified door hardware fire door hardware power transfer hinge

Apr 22, 2026

Aluminum Astragals for Door Pairs: How to Choose and Install the Right Meeting Stile Seal

Why the Gap Between Double Doors Matters More Than You Think When two door leaves meet at the center of an opening, that joint is called the meeting stile . Without a proper seal at the meeting stile,...

astragals commercial door seals door pair hardware fire door hardware meeting stile

Apr 22, 2026

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