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87 Articles

commercial door hardware ×

Steel Flat Bar Astragals on Hollow Metal Door Pairs: When the Opening Tells You Which Profile to Use

Why the Astragal Profile Decision Gets Made at the Wrong Time This article is for contractors, facility managers, and hardware specifiers who are responsible for hollow metal door pairs in commercial,...

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Apr 23, 2026 Our Blog

When the Wire Count on an Electric Transfer Hinge Is Wrong: How a 4-Wire Spec Becomes a Field Problem

Why Wire Count on an Electrified Hinge Matters More Than Most Specs Think This article is for contractors, hardware specifiers, and facility managers who are commissioning an electrified door opening ...

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Apr 23, 2026 Our Blog

ADA Wheelchair Ramp Thresholds at Occupied Buildings: How the Offset Spec Gets Chosen in the Field

What This Guide Covers and Who It Helps Selecting an ADA-compliant wheelchair ramp threshold for an already-occupied building is a different problem than specifying one on a new build. The door exists...

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Apr 23, 2026 Our Blog

Vinyl Perimeter Weatherstrip on Commercial Doors: Why the Closer Setting and the Seal Compression Have to Be Solved Together

Why Perimeter Weatherstrip Problems Are Almost Never Just a Weatherstrip Problem This article is for contractors, facility managers, and project superintendents dealing with a door that leaks air, dra...

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Apr 23, 2026 Our Blog

Heavy-Weight Hinges and High-Frequency Doors: Why the Closer Is Not the Only Reason a Hinge Wears Out

The Closer Gets Blamed. The Hinge Is the Problem. This article is for facility managers, commercial contractors, and specifiers who are dealing with doors that sag, bind, or develop excessive play ove...

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Apr 23, 2026 Our Blog

Switching an SVR Exit Device from a Dogged Opening to a Latching One: What Changes at the Strike, Rod, and Frame

Why This Conversion Happens More Than It Should Surface vertical rod (SVR) exit devices get dogged open on non-rated openings all the time. A school corridor pair, a retail stockroom egress, a warehou...

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Apr 23, 2026 Our Blog

Manual Flush Bolts on Inactive Door Leaves: The Rod Length Decision That Bites You After the Door Is Hung

Why the Rod Length on a Manual Flush Bolt Is Not a Minor Detail This article helps contractors, facility managers, and hardware specifiers understand how manual lever extension flush bolts work on the...

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Apr 23, 2026 Our Blog

Apartment Entrance Mortise Locks: The Specification Decisions That Get Revisited at the Punch List

Why Apartment Entrance Locksets Generate More Late-Stage Changes Than Almost Any Other Door Hardware This article is for commercial contractors, multifamily project managers, and specifying architects...

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Apr 23, 2026 Our Blog

Steel Door Lite Kits on Hollow Metal Doors: The Cutout and Glass Size Decisions That Bite You at Installation

Why So Many Steel Door Lite Kit Installs Go Wrong Before the Glass Even Ships A steel door window lite kit looks like a straightforward item on a hardware schedule. Cut a hole, drop in the frame, set ...

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Apr 23, 2026 Our Blog

Passage vs. Privacy vs. Storeroom: Choosing the Right Knob Latch Function Before the Door Gets Prepped

Why Lock Function Is the Decision That Cannot Wait Until Installation Day This article is for contractors, facility managers, and project architects who specify or install cylindrical knob latch hardw...

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Apr 23, 2026 Our Blog

Pull Handle Placement on Commercial Doors: The Decisions That Happen Before the Handle Ships

Why a Straight Door Pull Is More Complicated Than It Looks A straight door pull handle is one of the simplest pieces of hardware on a commercial opening. No moving parts, no wiring, no code function. ...

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Apr 23, 2026 Our Blog

Where the QC12 Electric Hinge Goes on the Door — and Why Getting the Position Wrong Kills the Whole System

The One Rule Installers Miss on Electric Hinge Jobs This article is for commercial subcontractors, facility maintenance teams, and access control integrators who are wiring an electrified hinge into a...

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Apr 23, 2026 Our Blog

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