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4 Articles

hollow metal doors ×

Corner Radius on Commercial Hinges: Why the 1/4-Inch Detail Decides Whether the Hinge Fits the Door

A Small Radius, a Real Field Problem This article is for contractors, facility managers, and architects who specify or order commercial door hinges. It covers one of the most overlooked details on a h...

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Apr 23, 2026

Aluminum Astragals on Hollow Metal Door Pairs: Why the Seal Material and Finish Have to Be Decided at the Opening Stage

What This Guide Covers and Who It Is For When a hollow metal door pair goes in and the gap at the meeting stiles leaks air, water, sound, or smoke, the astragal is almost always the fix. But specifier...

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Apr 23, 2026

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

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