David Bolton The Rim Strike on a Mullion-Free Door Pair: Why the Meeting Stile Clearance Gets Ignored Until the Panic Hardware Binds Why the Rim Strike on a Mullion-Free Pair Is Not an Afterthought This article is for commercial contractors, facility managers, and architects who are specifying or installing rim exit devices on pair... door pairs exit devices life safety panic hardware rim strike Jun 26, 2026
David Bolton Surface Vertical Rod Exit Devices on Door Pairs: Why the Strike Sequence Gets Decided After the Astragal Is Already Installed Why This Gets Ordered Wrong on Paired Openings Surface vertical rod (SVR) exit devices are a common specification on pairs of doors in schools, hospitals, retail exits, and industrial facilities. They... door pairs exit devices fire exit hardware life safety compliance surface vertical rod Jun 8, 2026
