David Bolton Heavy-Weight Ball Bearing Hinges: Why Frequency of Use — Not Just Door Weight — Should Drive the Upgrade Decision The Spec Decision Most Hardware Schedules Get Wrong When a hardware schedule calls out a standard-weight ball bearing hinge on a commercial door, the specifier has usually looked at one number: door w... ball bearing hinges commercial door hardware door maintenance heavy-weight hinges hinges Apr 23, 2026
David Bolton Door Bottom Shoes vs. Sweeps: Choosing the Right Assembly When the Floor Condition Changes The Problem Starts at the Floor, Not the Door This article helps contractors, facility managers, and architects understand when a door bottom shoe is the right call versus a simple sweep or automatic ... door bottoms door maintenance seals and sweeps threshold hardware weathersealing Apr 23, 2026