David Bolton Exit Device Prep on Hollow Metal Doors: What Gets Cut Wrong Before the Device Ever Ships Why Door Prep Is the Decision That Happens First -- and Hurts Last This article is for commercial subcontractors, door and hardware suppliers, and facility project managers who specify or install exit... door prep exit devices fire door compliance hollow metal doors panic hardware Jul 26, 2026
David Bolton Electrified Exit Device Trim: How the Outside Lever Controls Ingress Without Blocking Egress What This Article Covers and Who It Helps Electrified exit device trim is the outside lever, handle, or pull mounted on the secure side of a panic bar that is controlled by an access system rather tha... access control electrified hardware exit devices fire-rated door hardware panic hardware Jul 24, 2026
David Bolton Passage Function vs Night-Latch Function on Exit Devices: Choosing the Right Outside Trim for the Opening Why the Outside Trim Function on an Exit Device Is Not a Minor Detail This article explains the operational difference between passage function and night-latch function on exit device outside trim, an... egress hardware exit devices hardware schedules lockset functions outside trim Jul 19, 2026
David Bolton Panic Hardware in Assembly Occupancies: What the Occupant Load Threshold Actually Triggers What This Article Covers and Who It Helps If you are specifying, bidding, or inspecting door hardware in a theater, arena, conference center, house of worship, banquet hall, or any other assembly-use ... assembly occupancy code compliance exit devices life safety panic hardware Jul 13, 2026
David Bolton The SVR Top Strike Alignment Problem: Why the Top Latch Misses After the Frame Is Already Set Why the Top Strike Is the Most Mislocated Component on a Surface Vertical Rod Exit Device This article is for commercial contractors, facility maintenance crews, and hardware coordinators dealing with... door hardware exit devices installation panic hardware surface vertical rod Jul 7, 2026
David Bolton Classroom Function Exit Device Trim: Why the Outside Lever Choice Gets Misread Before the Hardware Set Ships What This Article Covers and Who It Helps Classroom function exit device trim is one of the most frequently misread entries on a hardware schedule. It looks like a lever trim option, but it controls a... classroom function trim exit devices hardware schedules panic hardware trim school door hardware Jul 4, 2026
David Bolton The Hardware Coordination Problem Nobody Solves Until the Pivot Door Is Already Hung What This Article Covers -- and Who Needs It Aluminum storefront pivot doors show up on retail entries, corporate lobbies, school main entrances, and healthcare reception fronts. They look clean. They... aluminum storefront exit devices floor closers pivot doors storefront hardware Jun 28, 2026
David Bolton Dummy Trim vs Night Latch Trim on Exit Devices: Picking the Right Outside Function Before the Door Gets Prepped Why the Outside Trim Function Gets Chosen Last and Causes Problems First This article explains the practical difference between dummy trim and night latch trim on exit devices, who each function is ri... egress exit devices hardware schedules outside trim panic hardware Jun 27, 2026
David Bolton Cylinder Dogging on Exit Devices: Why the Upgrade Gets Ordered Wrong Before Anyone Checks the Fire Rating What Cylinder Dogging Actually Does on a Panic Bar Cylinder dogging is a feature that lets a building operator use a standard key cylinder to hold an exit device's latch bolt in the retracted position... cylinder dogging exit devices fire-rated openings panic hardware retrofit hardware Jun 27, 2026
David Bolton Exit Devices for Acoustic Spaces: Keeping Egress Hardware From Fighting the Room Why Egress Hardware Becomes a Problem in Noise-Sensitive Buildings This article is for architects, acoustical consultants, and facility managers specifying or replacing exit devices in spaces where so... acoustic hardware door closers exit devices perimeter seals sound-rated openings Jun 26, 2026
David Bolton The Bottom Strike on a Vertical Rod Exit Device: Why the Floor Prep Gets Done Wrong Before the Door Ever Closes What This Article Covers This guide is for commercial subcontractors, facility maintenance technicians, and project managers who are installing or replacing vertical rod exit devices and want to avoid... exit devices fire-rated openings floor strikes installation vertical rod hardware Jun 25, 2026
David Bolton Why the Top Strike Gets Forgotten When a Vertical Rod Exit Device Is Replaced Mid-Project The Part That Stops the Door — and Stops the Job This article is for commercial contractors, facility managers, and project architects who are replacing or specifying vertical rod exit devices on alum... commercial door components door hardware replacement exit devices life safety hardware vertical rod hardware Jun 24, 2026