David Bolton Square Barrel vs. Round Barrel Butt Hinges: Why the Barrel Shape Matters on Decorative and Institutional Openings What This Article Covers and Who It Helps When a hardware schedule simply calls for a 4-1/2 x 4-1/2 full mortise butt hinge , most contractors reach for whatever ships fastest. But barrel shape is a r... commercial door hardware decorative hardware full mortise hinges hinges installation Jul 23, 2026
David Bolton The SVR Top Strike Alignment Problem: Why the Top Latch Misses After the Frame Is Already Set Why the Top Strike Is the Most Mislocated Component on a Surface Vertical Rod Exit Device This article is for commercial contractors, facility maintenance crews, and hardware coordinators dealing with... door hardware exit devices installation panic hardware surface vertical rod Jul 7, 2026
David Bolton The Bottom Strike on a Vertical Rod Exit Device: Why the Floor Prep Gets Done Wrong Before the Door Ever Closes What This Article Covers This guide is for commercial subcontractors, facility maintenance technicians, and project managers who are installing or replacing vertical rod exit devices and want to avoid... exit devices fire-rated openings floor strikes installation vertical rod hardware Jun 25, 2026
David Bolton Radius Corner vs. Square Corner Hinges: The Small Detail That Causes Big Rework on Commercial Doors Why a 5/8-Inch Radius Can Send a Job Backward This article is for contractors, facility managers, and hardware specifiers who have ever cracked open a box of hinges on a job site only to discover the ... commercial door hardware fire doors hinges installation specification Apr 23, 2026
