David Bolton Aluminum Astragals on Hollow Metal Door Pairs: Why the Seal Material and Finish Have to Be Decided at the Opening Stage What This Guide Covers and Who It Is For When a hollow metal door pair goes in and the gap at the meeting stiles leaks air, water, sound, or smoke, the astragal is almost always the fix. But specifier... astragals door hardware specification door pairs hollow metal doors weathersealing Apr 23, 2026 Our Blog
David Bolton Steel Flat Bar Astragals on Hollow Metal Door Pairs: When the Opening Tells You Which Profile to Use Why the Astragal Profile Decision Gets Made at the Wrong Time This article is for contractors, facility managers, and hardware specifiers who are responsible for hollow metal door pairs in commercial,... astragals commercial door hardware door pairs hollow metal doors seals and sweeps Apr 23, 2026 Our Blog
David Bolton Manual Flush Bolts on Inactive Door Leaves: The Rod Length Decision That Bites You After the Door Is Hung Why the Rod Length on a Manual Flush Bolt Is Not a Minor Detail This article helps contractors, facility managers, and hardware specifiers understand how manual lever extension flush bolts work on the... commercial door hardware door pairs fire door compliance flush bolts inactive leaf hardware Apr 23, 2026 Our Blog
David Bolton Nylon Brush Astragals on Door Pairs: A Specifier's Guide to Getting the Seal Right Why the Meeting Stile Gap Is a Problem Worth Solving On any pair of commercial doors, the vertical gap where the two leaves meet in the center is one of the most overlooked details in a hardware sched... astragals commercial door hardware door pairs fire door compliance meeting stile seal Apr 22, 2026 Our Blog
