David Bolton Quick-Connect Electric Hinges: How the Concealed-Circuit System Actually Works What This Guide Covers and Who It Is For If you are specifying or installing electrified door hardware -- an electric latch retraction exit device, an electrified mortise lock, or an electromagnetic l... access control concealed circuit electric hinges electrified hardware power transfer Apr 23, 2026 Our Blog
David Bolton Outswing Doors with Closers: Why Your Hinge Pin and Bearing Spec Both Matter The Two Vulnerabilities Nobody Talks About Together This guide is for contractors, facility managers, and architects specifying or replacing hinges on outswing doors that also carry a closer. An outsw... NRP hinges ball bearing hinges commercial door hardware hinge specification outswing doors Apr 23, 2026 Our Blog
David Bolton Passing Ethernet Through a Door Opening: When and How to Use a PoE Electric Hinge What This Guide Covers and Who It Helps If you are specifying or installing a door-mounted access control device that communicates over a network rather than through a simple hardwired signal, you hav... access control hardware commercial door hardware electric hinges electrified door openings power over ethernet hardware Apr 23, 2026 Our Blog
David Bolton Rim Exit Devices on Single Doors: How to Nail the Selection Before You Order Why Rim Exit Device Selection Goes Wrong Before Installation Even Starts This guide is for contractors, facility managers, and architects who need to select a rim exit device for a standard single doo... commercial door hardware egress hardware exit devices life safety rim panic hardware Apr 23, 2026 Our Blog
David Bolton Heavy Weight vs. Standard Weight Hinges: How to Choose the Right Grade Before You Order Why Hinge Weight Grade Is One of the Most Under-Specified Decisions on a Commercial Opening This guide is for contractors, facility managers, and specifiers who want to get hinge grade right the first... commercial door hardware door installation heavy weight hinges hinge specification hinges Apr 23, 2026 Our Blog
David Bolton 6-Circuit Electric Hinges: When Your Electrified Opening Outgrows a Standard Wire Count What This Guide Covers This article helps contractors, facility managers, and architects understand when a standard 2- or 4-circuit electric hinge is no longer enough for a given door opening, and whe... access control commercial door hardware electric hinges electrified hardware power transfer Apr 23, 2026 Our Blog
David Bolton Fire-Rated Automatic Door Bottoms: What Makes a Drop Seal Code-Compliant on a Labeled Opening Why the Fire Rating on an Automatic Door Bottom Actually Matters This guide is for contractors, facility managers, and specifiers who need to understand the compliance difference between a standard au... NFPA 80 compliance automatic door bottoms door bottom seals fire door assembly fire-rated door hardware Apr 23, 2026 Our Blog
David Bolton Stainless Steel Hinges on Commercial Doors: Why Finish and Base Material Both Matter The Confusion Between Stainless Finish and Stainless Steel This guide is for contractors, facility managers, and architects who specify or maintain commercial door hardware. It covers one of the most ... commercial door hardware door installation hinge specification hinges stainless steel hardware Apr 23, 2026 Our Blog
David Bolton How Many Circuits Does Your Electric Hinge Actually Need? A Wiring Guide for Electrified Door Openings Why Circuit Count Is the Decision Most Specifiers Get Wrong This guide is for contractors, hardware specifiers, and facility managers who are wiring electrified door openings and need to match the rig... access control commercial door hardware electric hinges electrified hardware power transfer Apr 23, 2026 Our Blog
David Bolton Fire-Rated SVR Exit Devices: The Annual Inspection Checklist That Keeps You Code-Compliant Why Fire-Rated SVR Exit Devices Demand a Dedicated Inspection Routine This guide is for facility managers, maintenance contractors, and life safety inspectors who are responsible for keeping fire-rate... NFPA 80 exit devices facility maintenance fire door compliance panic hardware Apr 23, 2026 Our Blog
David Bolton 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 Our Blog
David Bolton 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... NRP hardware commercial door hardware door security hinges outswing doors Apr 23, 2026 Our Blog
