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 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
David Bolton Electric Hinges as Power Transfer Devices: How They Work and When to Specify Them What Is an Electric Hinge and What Problem Does It Solve? An electric hinge looks almost identical to a standard commercial ball bearing hinge from the corridor side. The difference lives inside: conc... access control hardware commercial door hardware electric hinges electrified door openings power transfer hardware Apr 23, 2026 Our Blog
David Bolton 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
David Bolton Clearing the ADA Threshold Height Hurdle: Ramp Thresholds on Accessible Door Openings What This Guide Covers and Who It Helps When a door opening sits on an accessible route, the threshold is not just a weatherseal or a floor transition piece -- it is a compliance checkpoint. Facility ... ADA Thresholds Accessible Hardware Code Compliance Commercial Door Hardware Ramp Thresholds Apr 23, 2026 Our Blog
David Bolton Ball Bearing Hinges on Commercial Doors: How to Size and Specify Them Right the First Time Why Getting Hinge Spec Right Matters Before the Door Ever Gets Hung This guide helps contractors, facility managers, and specifiers choose the correct ball bearing hinge size, quantity, and configurat... ball bearing hinges commercial door hardware door hardware installation full mortise hinges hinge specification Apr 23, 2026 Our Blog
David Bolton SVR Exit Devices on Oversized Fire-Rated Doors: What Changes at 4x8 Why Door Size Changes Everything on a Fire-Rated SVR Opening This guide is for commercial contractors, facility managers, and architects who are specifying or installing a surface vertical rod (SVR) e... NFPA 80 compliance SVR panic hardware commercial egress hardware fire-rated exit devices oversized door hardware Apr 23, 2026 Our Blog
David Bolton Round Knobs vs. Lever Handles: Specifying the Right Office Entry Lockset for Accessibility and Code Why the Knob-vs-Lever Decision Still Matters on Commercial Projects If you are specifying or replacing hardware on office entry doors, one of the first questions you will face is simple but consequent... ADA door hardware commercial locksets hardware specification lever vs knob hardware office entry locksets Apr 22, 2026 Our Blog
David Bolton 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 Our Blog
David Bolton Kick-Down Door Holders: Where They Work, Where They Don't, and How to Spec the Right Stop What This Guide Covers Kick-down door holders are one of the most misused pieces of hardware in commercial buildings. They are inexpensive, easy to install, and genuinely useful in the right setting. ... NFPA 80 commercial door hardware door stops and holders facility maintenance fire door compliance Apr 22, 2026 Our Blog