David Bolton Retrofit Window Lites on Steel Doors: Why the Glass Spec Gets Finalized After the Door Is Already in Service Why This Decision Keeps Getting Made in the Wrong Order This article is for facility managers, commercial contractors, and maintenance teams who need to add a vision panel to a steel door that is alre... fire-rated doors hollow metal doors retrofit door hardware steel door hardware window lite kits Jun 3, 2026
David Bolton Swing Clear Hinges on Accessible Openings: When a Standard Hinge Quietly Steals Your Clear Width The Hidden Way a Standard Hinge Fails an Accessible Opening This article is for contractors, facility managers, and architects who have encountered an accessible door opening that meets the 32-inch mi... ADA accessible hardware accessible opening compliance commercial door hinges retrofit door hardware swing clear hinges Apr 23, 2026