David Bolton Particleboard Core Wood Doors: Where They Fit, Where They Fall Short, and How to Spec the Hardware Right What This Guide Covers This article explains what particleboard core wood doors are, where they are commonly specified in commercial and light-commercial construction, and what hardware decisions hing... commercial hardware door cores fire-rated doors interior door hardware wood doors Sep 19, 2026
David Bolton Pull Side vs. Push Side Closer Mounting: How to Choose the Right Position Before the Door Goes In Why Mounting Position Is the First Closer Decision, Not the Last This article explains the practical difference between pull-side and push-side door closer mounting, when each position is the right ca... closer mounting commercial hardware door closers parallel arm pull side push side Sep 19, 2026
David Bolton ADA Closer Spring Force: The Field Adjustment That Determines Whether Your Door Passes or Fails What This Article Covers -- and Who Needs It A door closer that is wound too tight is one of the most common ADA compliance failures in commercial buildings -- and one of the easiest to miss during a ... ADA compliance accessibility commercial hardware door closers spring force Sep 16, 2026
David Bolton Closer Torque Rating vs. Door Inertia: Why the Physics of Your Opening Determines the Right Closer Size What This Article Covers -- and Who It Helps When a closer fails to latch a heavy corridor door or slams shut faster than it should, the instinct is to blame the spring adjustment. The real cause is u... ADA compliance ANSI A156.4 closer sizing commercial hardware door closers Sep 6, 2026
David Bolton Cam-Action vs. Rack-and-Pinion Door Closers: Which Mechanism Belongs on Your Opening? Two Mechanisms, One Job -- But Very Different Results This article explains the mechanical difference between cam-action and rack-and-pinion door closers, when each design has the advantage, and how t... ADA compliance cam-action closers commercial hardware door closers specification guide Sep 5, 2026
David Bolton Door Closer Spring Size by Door Width and Weight: Getting the Number Right Before You Install Why Spring Rate Is the First Closer Decision, Not an Afterthought This article helps contractors, facility managers, and specifiers choose the correct door closer spring size based on door width and w... ADA compliance closer sizing commercial hardware door closers spring rate Sep 4, 2026
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
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
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
David Bolton Heavy Weight vs. Standard Weight Hinges on Fire-Rated Doors: Why the Wrong Choice Fails the Annual Inspection What This Article Covers and Who It Helps This guide is for commercial contractors, facility managers, and architects who specify or maintain hinges on fire-rated door assemblies. It focuses on a spec... NFPA 80 commercial hardware fire-rated doors hinges inspection compliance Aug 13, 2026
David Bolton Access Panel Hinge Selection: Matching the Right Configuration to the Opening Type What Is an Access Panel Hinge and Why Does the Configuration Matter? An access panel hinge is a hinge used to hang lightweight inspection or utility panels — in ceilings, walls, mechanical enclosures,... access panels commercial hardware facility maintenance hardware selection hinges Jul 30, 2026
David Bolton When a Deadbolt Is the Right Answer: Specifying Auxiliary Locks for Commercial Doors That Do Not Need a Latchbolt What This Article Covers and Who It Helps Not every commercial door needs a cylindrical lockset with a latchbolt. In a surprising number of situations -- electrical rooms, pipe chases, storage closets... auxiliary locks code compliance commercial hardware deadbolts hardware specification Jul 16, 2026
