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 Cutting a Door Window Lite Into a Steel Door: A Field Guide for Commercial Installers What This Guide Covers Adding a vision panel to an existing hollow metal door is one of the most common field modifications a commercial installer or facility maintenance team will encounter. Whether ... door window lite fire door glazing hollow metal door glass steel door installation vision panel Apr 22, 2026 Our Blog
David Bolton Privacy Knob Latchsets in Commercial Buildings: What Facility Managers and Contractors Need to Know What This Guide Covers Privacy latchsets are one of the most commonly misspecified door hardware functions in commercial construction. Whether you are a contractor roughing in restrooms at a school, a... ADA compliance BHMA grades commercial door hardware door hardware specification privacy latchsets Apr 22, 2026 Our Blog
David Bolton Fire-Rated Access Doors: What Contractors and Facility Managers Need to Know What Is a Fire-Rated Access Door? A fire-rated access door is a listed assembly that provides maintenance personnel or inspectors entry to concealed building systems -- think plumbing valves, electric... code compliance commercial door hardware facility maintenance fire-rated access doors life safety Apr 22, 2026 Our Blog
David Bolton Magnetic Lock Kits for Commercial Doors: What to Know Before You Buy or Specify What This Guide Covers and Who It Helps Electromagnetic lock kits -- commonly called mag-lock kits -- combine a holding-force magnet, a power supply, and a release mechanism into a single access-contr... access control hardware commercial door security egress code compliance electrified door hardware electromagnetic locks Apr 22, 2026 Our Blog
David Bolton Classroom Locksets: What Facilities Manager's and Contractors Need to Know Who This Guide Is For This article helps school facility managers, commercial contractors, and architects understand how to properly select, specify, and install classroom-function knob locksets in in... ADA door hardware ANSI Grade 2 hardware classroom locksets commercial locksets school door hardware Apr 19, 2026 Our Blog
David Bolton Commercial Lock Functions Explained: Mortise, Cylindrical, Deadbolts, and Outside Exit Trims What Are Lock Functions and Why Do They Matter? A lock function describes exactly how a door behaves from both sides: who can enter, who can exit freely, and under what conditions a key or credential ... classroom security commercial door hardware egress code compliance lock functions mortise locksets Apr 19, 2026 Our Blog
David Bolton Exit Devices Explained: How to Choose the Right Panic Hardware for Your Building What Are Exit Devices and Why Do They Matter? An exit device -- also called panic hardware, a crash bar, push bar, or egress device -- is a latching mechanism installed on an outswing door that allows... commercial-door-hardware egress-hardware exit-devices fire-exit-hardware panic-hardware Apr 19, 2026 Our Blog
David Bolton Intermediate Pivots: Why They Fail, When You Need Them, and How to Fix the Problem What Are IntermediatePivots and Why Do They Matter? A pivot set transfers a door's full weight to the floor and overhead frame rather than distributing it across multiple hinge knuckles. That makes pi... commercial hardware door hardware floor closers heavy doors pivots Apr 19, 2026 Our Blog
David Bolton Restroom Visual Indicator Locks: Solving the Occupied vs. Vacant Problem in Commercial Buildings What Is a Restroom Visual Indicator Lock? A restroom visual indicator lock -- sometimes called an occupied/vacant lock , a privacy indicator lock , or a thumb turn indicator lock -- is a privacy locks... ADA Compliance Commercial Locksets Facilities Management Privacy Locks Restroom Hardware Apr 19, 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
David Bolton Astragals for Double Doors: Problems, Benefits, and the Right Solution What Is an Astragal -- and Why Does It Matter? An astragal is the hardware component that seals the gap between the two leaves of a pair of doors -- the meeting stile . Without one, that center gap be... astragals commercial door gasketing double door hardware fire door hardware meeting stile seal Apr 19, 2026 Our Blog