David Bolton Cylindrical or Mortise Lockset: The Decision Criteria That Actually Drive the Right Choice Why This Choice Matters Before the Door Gets Prepped Specifiers, commercial contractors, and facility managers face this question on nearly every project: cylindrical lockset or mortise? The answer is... access control commercial door hardware cylindrical locks locksets mortise locks Aug 15, 2026 Our Blog
David Bolton Astragal Selection for Non-Rated Door Pairs: Getting the Meeting Edge Right Without Fire-Door Rules in the Way What This Article Covers and Who It Helps Non-rated door pairs -- double doors without a center mullion -- share a common problem: the gap at the meeting edge lets in light, air, sound, and foot traff... astragal commercial door hardware door pairs meeting edge seal weatherstripping Aug 14, 2026 Our Blog
David Bolton Floor Closers on Double-Acting Doors: What Changes When the Door Swings Both Ways The Problem With Putting a Standard Closer on a Double-Acting Door This article explains how door closers work differently on double-acting openings, which closer types are appropriate, and what speci... center-hung hardware commercial door hardware door closers double-acting doors floor closers Aug 13, 2026 Our Blog
David Bolton The Hold-Back Function on a Mortise Lock: Why Getting the Trim Package Wrong Costs You a Second Trip What This Article Covers and Who It Helps A hold-back mortise lockset sounds straightforward: turn the inside lever or thumb piece, the latch retracts and stays retracted until you release it. But the... Grade 1 locks commercial door hardware hold-back function installation tips mortise locksets Aug 12, 2026 Our Blog
David Bolton The Case for a Fourth Hinge: When Three Just Is Not Enough Why the Three-Hinge Default Leaves Some Doors Underhung Most commercial doors get three hinges and move on. For a standard 3'0" x 7'0" x 1-3/4" hollow metal door in an office corridor, that is exactly... commercial door hardware door hardware specification fire door compliance hardware schedules hinges Aug 11, 2026 Our Blog
David Bolton Mortise Lock Hold-Back Trim Choices That Kill the Installation: Wide Escutcheon vs. Sectional and Why It Matters Before You Cut the Door Why Trim Style on a Hold-Back Mortise Lock Deserves More Attention Than It Gets This article is for commercial contractors, facility managers, and hardware specifiers who are selecting or replacing a ... Grade 1 locks commercial door hardware escutcheon trim hold-back function mortise locksets Aug 11, 2026 Our Blog
David Bolton ANSI Lockset Grades Explained: How to Match Grade 1, 2, or 3 to the Opening in Front of You Why the Grade Number on a Lockset Actually Matters This guide is for facility managers, commercial contractors, and specifiers who need to match an ANSI/BHMA lockset grade to a specific opening withou... ANSI BHMA grades commercial door hardware cylindrical locks hardware specification locksets Aug 10, 2026 Our Blog
David Bolton Overhead Door Holders in Industrial Facilities: Matching the Right Device to the Load, Cycle, and Opening The Problem Nobody Talks About Until the Door Destroys the Wall This article is for facility managers, commercial hardware specifiers, and industrial maintenance teams who need to match an overhead do... commercial door hardware door closers door holders industrial hardware overhead stops Aug 9, 2026 Our Blog
David Bolton Door Position Switches: Where They Go, How They Wire, and What Goes Wrong on the First Install What Is a Door Position Switch and Why Does Every Access-Controlled Opening Need One? A door position switch (DPS) is a two-piece magnetic sensor -- a reed switch module and a matching magnet -- that ... access control hardware commercial door hardware door monitoring door position switch electrified hardware Aug 7, 2026 Our Blog
David Bolton HES 1006 vs. Folger Adam vs. Adams Rite Electric Strikes: Picking the Right Strike for the Opening Three Strike Families, Three Different Jobs When an access control project calls for an electric strike, the choice between the HES 1006 series, Folger Adam heavy-duty strikes, and Adams Rite frame-mo... Adams Rite HES 1006 access control hardware commercial door hardware electric strikes Aug 7, 2026 Our Blog
David Bolton Communicating Function vs. Exit Function: Choosing the Right Cylindrical Latchset When the Door Swings Both Ways The Function Number Is the Decision, Not the Lever Style When a commercial door schedule lands on your desk and you see a cylindrical latchset specified as a communicating or exit function, it is easy... commercial door hardware communicating function cylindrical latchsets exit function fire-rated hardware Aug 7, 2026 Our Blog
David Bolton NRP Hinges on Outswing Doors: When the Pin Becomes the Vulnerability Why the Hinge Pin Is a Security Problem on Outswing Doors This article is for commercial contractors, facility managers, and architects who specify or install hardware on outswing doors. It explains w... NRP commercial door hardware hinges outswing doors security hardware Aug 4, 2026 Our Blog