David Bolton Manual Flush Bolts on Inactive Door Leaves: The Rod Length Decision That Bites You After the Door Is Hung Why the Rod Length on a Manual Flush Bolt Is Not a Minor Detail This article helps contractors, facility managers, and hardware specifiers understand how manual lever extension flush bolts work on the... commercial door hardware door pairs fire door compliance flush bolts inactive leaf hardware Apr 23, 2026 Our Blog
David Bolton Kick-Down Door Holders on Non-Fire-Rated Openings: Where They Belong and Where They Get You in Trouble What This Article Covers Kick-down door holders are one of the most misapplied pieces of hardware in commercial buildings. They show up on fire corridor doors, on hold-open applications that require e... NFPA 80 door holders door stops fire door compliance kick-down stop Apr 23, 2026 Our Blog
David Bolton Automatic Door Holders on Fire Corridor Doors: Why the Hold-Open Position Matters More Than the Device Itself Why This Matters to Contractors, Facility Managers, and Architects This article covers a specific field problem that comes up repeatedly on fire-rated corridor and smoke-barrier doors: the automatic d... NFPA 80 automatic door holders corridor doors door stops and holders fire door compliance Apr 23, 2026 Our Blog
David Bolton Why SVR Exit Devices Fail Annual Fire Door Inspections — and What to Fix Before the Inspector Arrives What This Article Covers Surface vertical rod (SVR) exit devices are among the most common fire-rated exit hardware configurations on pairs of commercial doors. They are also among the most frequently... NFPA 80 SVR panic hardware exit devices fire door compliance fire door inspection Apr 23, 2026 Our Blog
David Bolton Manual Flush Bolts on Inactive Door Leaves: Why the Bolt You Throw by Hand Creates Problems You Don't See Until Inspection What This Article Covers -- and Who It Helps Manual flush bolts seem like a simple solution: throw the lever, the bolt seats into the floor or header strike, and the inactive leaf of a door pair stays... commercial door hardware door pair hardware fire door compliance flush bolts inactive door leaf hardware Apr 23, 2026 Our Blog
David Bolton Fire-Rated Rim Exit Devices: Why the Door Label Is Just the Beginning of Code Compliance More Than a Panic Bar: What Fire Exit Hardware Actually Requires This guide is for commercial contractors, facility managers, and architects working with fire-rated door assemblies that require egress... NFPA 80 exit devices fire door compliance life safety rim exit hardware 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 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
David Bolton Nylon Brush Astragals on Door Pairs: A Specifier's Guide to Getting the Seal Right Why the Meeting Stile Gap Is a Problem Worth Solving On any pair of commercial doors, the vertical gap where the two leaves meet in the center is one of the most overlooked details in a hardware sched... astragals commercial door hardware door pairs fire door compliance meeting stile seal Apr 22, 2026 Our Blog
David Bolton Hospital Tip Hinges: Why the Tip Shape Matters in Healthcare and Institutional Openings What Is a Hospital Tip Hinge? A hospital tip hinge looks nearly identical to a standard commercial butt hinge at a glance. The difference is in the tip geometry: instead of a flat button tip or a deco... door hinges fire door compliance healthcare hardware hospital tip hinges institutional door hardware Apr 22, 2026 Our Blog
David Bolton Specifying Flush Bolts for Inactive Leaves: A Practical Guide for Metal Door Openings Why Flush Bolts Matter on Inactive Door Leaves On a pair of commercial doors, the inactive leaf -- the one that typically stays closed -- needs its own latching solution. That solution is almost alway... door pair hardware fire door compliance flush bolts hollow metal door hardware inactive leaf hardware Apr 22, 2026 Our Blog
David Bolton Mortise Locks Explained: Problems, Benefits, and the Right Solution for Commercial Doors What This Article Covers -- and Who It Helps This guide explains what a mortise lock is, where it outperforms other lock types, the most common problems contractors and facility managers run into, and... access control commercial door hardware electrified hardware fire door compliance mortise locks Apr 19, 2026 Our Blog