David Bolton ADA Offset Interlocking Thresholds: What Changes When the Floor Transition Happens Inside a Fire-Rated Opening When an ADA Ramp Threshold Meets a Fire-Rated Door: What Actually Changes This article is for facility managers, commercial contractors, and specifiers who are selecting or replacing an ADA offset int... ADA thresholds NFPA 80 accessibility compliance fire-rated door hardware interlocking ramp threshold Jun 2, 2026
David Bolton How a Swing Clear Hinge Actually Creates Clear Width — and Where Contractors Get It Wrong What This Guide Covers This article explains how swing clear hinges work mechanically, which job conditions call for them, and the common specification and installation mistakes that cancel out the cl... ADA door hardware accessibility compliance commercial hinges door hardware specification swing clear hinges Apr 23, 2026