David Bolton Plain Bearing vs. Ball Bearing on a Door with a Closer: Why the Closer Is the Decision-Maker The Closer Changes Everything About How a Hinge Wears This article is for commercial contractors, facility managers, and architects who are specifying or replacing hinges on doors that carry a door cl... commercial hardware door closers hardware specification hinges maintenance Sep 3, 2026 Our Blog
David Bolton Fastener Failure at the Frame: Why Screw Type Matters More Than Torque on Hollow Metal Hinge Installations This article is for commercial subcontractors, facility maintenance staff, and hardware specifiers who work with hollow metal frames and want to understand why the wrong hinge fastener -- even one tha... commercial hardware fasteners hinges hollow metal frames installation Sep 2, 2026 Our Blog
David Bolton When the HVAC Changes, Your Door Closers Need a Second Look Why a New HVAC System Can Make a Perfectly Good Closer Fail This article is for facility managers, mechanical contractors, and building engineers who have noticed that doors are slamming, not latching... HVAC and door hardware closer adjustment door closers facility maintenance fire door compliance Sep 2, 2026 Our Blog
David Bolton Why Plain Bearing Hinges Get Replaced Before Their Time: Understanding Load, Use Frequency, and the Closer Pairing Rule The Hinge Nobody Questions Until It Starts Sagging Plain bearing hinges are among the most common hardware items on a commercial project, and they are also among the most commonly misapplied. This gui... commercial doors door closers hardware specification hinges plain bearing Sep 2, 2026 Our Blog
David Bolton Kick Plate Height Standards: What the Spec Needs to Say Before the Hardware Ships What This Article Covers Kick plates seem straightforward until the spec is wrong and the wrong plate shows up on a fire-rated door or a wood door with a closer. This guide covers standard height rang... NFPA 80 commercial doors door protection hardware hardware specification kick plates Sep 1, 2026 Our Blog
David Bolton Frame Strike Preparation: What the Hollow Metal Frame Has to Be Ready For Before Hardware Ships Why Frame Strike Preparation Is a Decision, Not a Default This article is for commercial contractors, door frame suppliers, and facility managers who need to understand how strike preparations are spe... ANSI strike prep door hardware specification electric strike installation frame strike preparation hollow metal frames Sep 1, 2026 Our Blog
David Bolton Hinge Shimming in the Field: How to Fix Door Alignment Without Pulling the Hardware When the Door Is Hung but Not Right: A Field Alignment Problem Every Installer Knows This guide is for commercial contractors, school and facility maintenance staff, and anyone responsible for keeping... commercial hardware door alignment field installation hinges hollow metal doors Sep 1, 2026 Our Blog
David Bolton 600, 1200, or 1500 Pounds: Choosing the Right Magnetic Lock Holding Force for Your Opening Which Maglock Force Rating Does Your Opening Actually Need? This article helps contractors, facility managers, and security integrators understand the practical differences between 600, 1200, and 1500... access control hardware door security electrified hardware electromagnetic locks magnetic locks Aug 31, 2026 Our Blog
David Bolton Cylindrical Lockset Backset 2-3/4 vs 2-3/8: How to Match the Latch to the Door Before You Drill The Half-Inch Difference That Derails a Hardware Schedule This article explains the two most common latch backset dimensions on cylindrical locksets -- 2-3/4 inch and 2-3/8 inch -- what each one means... backset commercial door hardware cylindrical locksets door hardware fundamentals hardware specification Aug 31, 2026 Our Blog
David Bolton Exit Device Trim for Outside Operation: Matching the Function to the Opening Before the Schedule Ships What Is Exit Device Outside Trim -- and Why Does It Matter? Exit device outside trim is the hardware component mounted on the pull side of a door equipped with panic or fire exit hardware. The exit de... access control hardware exit devices hardware schedules outside trim panic hardware Aug 31, 2026 Our Blog
David Bolton Plaster Bead Access Panels in Historic Interiors: Getting Behind the Wall Without Wrecking It When the Wall Itself Is the Asset This article explains what plaster bead access panels are, where they belong, and what specifiers, restoration contractors, and facilities teams at historic propertie... access panels fire-rated access doors historic renovation plaster hardware restoration construction Aug 31, 2026 Our Blog
David Bolton Privacy Lock Mortise vs. Cylindrical: Choosing the Right Mechanism Before the Door Gets Drilled Two Lock Bodies, One Function -- and the Choice Matters Before the Drill Touches the Door This article is for commercial contractors, facility managers, and architects who need a privacy-function lock... commercial door hardware facility maintenance lock specification mortise locks privacy lock function Aug 31, 2026 Our Blog
