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7 Articles

panic exit device × door hardware specification ×

No Cylinder Override on a Fail Secure Mortise Lock: Why Some Openings Are Specified That Way on Purpose

What This Article Covers This guide explains why a fail secure electrified mortise lockset is sometimes ordered without a cylinder override on the outside lever — and why that is a deliberate specific...

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Oct 9, 2026

Always Locked Outside, Always Free Inside: Specifying Storeroom Function for Unattended Spaces

What This Article Covers Storeroom function is one of the most widely used institutional lock functions in commercial construction, yet it gets misapplied often enough to cause real problems at inspec...

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Jul 11, 2026 Our Blog

Why the CVR Cladding Kit Gets Forgotten Until the Exit Device Is Already Mounted on the Door

What This Article Covers and Who It Helps Concealed vertical rod (CVR) exit devices require precise cutouts in the door face for the top and bottom rod latches. When those cutouts are made and the dev...

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Jun 29, 2026 Our Blog

SVR Exit Devices on Tall Doors: Why an 8-Foot Opening Changes the Rod, Strike, and Sequence Plan

Why Door Height Is a Bigger Variable Than Most Hardware Schedules Admit This article is for commercial contractors, facility managers, and project architects who are working with surface vertical rod ...

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Apr 23, 2026 Our Blog

SVR Exit Devices on Non-Rated Oversized Pairs: How to Spec the Full Hardware Set When the Door Schedule Gets Complicated

What This Guide Covers and Who It Helps When a door schedule lands on your desk with a non-rated pair at 4 feet wide by 8 feet tall, the surface vertical rod (SVR) exit device is only one piece of a l...

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Apr 23, 2026 Our Blog

Connector Count vs. Circuit Count on Electric Hinges: How to Match Your QC Configuration to the Opening

Why the Circuit Count on a Quick-Connect Electric Hinge Is a Design Decision, Not an Afterthought This guide is for electrical contractors, security integrators, and architects who are specifying or i...

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Apr 23, 2026 Our Blog

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...

SVR panic hardware commercial egress door hardware specification exit devices oversized doors

Apr 23, 2026 Our Blog